Do Nails or Screws Have the Most Holding Strength (not shear strength)? Let's find out!
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- Опубліковано 28 вер 2024
- The difference in holding strength or pull-out strength (lateral load or shear strength not tested) among different types of nails and screws is amazing! The type of coating used on nails and screws makes a huge difference. In the video, 5 types of nails and 2 types of screws get tested for tensile strength in untreated 2x4s. Each type of fastener is tested 7 times and the highest and lowest strengths for each fastener is "thrown out". The types of nails include 16D coated, uncoated, galvanized, spiral shank, and ring shank. The types of screws include 3.5 inch drywall and coated deck screws. Shear strength is not tested in this video, only pull-out or holding strength. Highly recommend following applicable building and construction codes when building structures. Drywall screws provide tremendous clamp load but aren't designed for structural connections.
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Never thought I would get hyped up over screws. I screamed when we hit over 1k pounds
Thank you!
Leo Nardo why would you spoiler tho :(
@@xbeetlejuiice4981 what did you expect reading the comments before watching the video?
GreenScreen What was i expecting? I don’t know. But i hoped there were no spoilers xD
@@greenscreen1060 stfu
You've nailed this video. Definitely not screwing around.
You really drove that home.
@@solomonshaffer832 hit the nail on the head there !!😁
Can you hammer out some more puns?
Screw this. You guys got all the good jokes ill just stick to getting hammered.
you've done a hammer of a job @@wizkid1
The spiral nails made your pull device twist. If you eliminated the twist motion the spiral nail would perform better.
Thank you. Yes, you are right. Thank you
Just posted this and then found you had posted it as well.
Came here to post this....
Yep, gald PF agrees
Agreed
Whenever I see a Project Farm thumbnail, I immediately think, how would I real-world-test this product. Then I say, Not A Clue so I’d better see how Todd does it. EVERY Project Farm video, even the ones for items I’m never going to use, are so informative and entertaining and ACTUAL SCIENTIFIC, you just have to watch. THANKS TODD!!! And thanks to Mrs. Project Farm for allowing you to spend 23 hours a day working on experiments for us!!
Thank you!!
@@ProjectFarm Have you done a test to see which self tapping screws tap the best without destroying the screw end or the hex head on top. Also how thick the metal can be before they will not self tap?
I gotta say. I really like how scientific of an approach you try to bring. Answering the questions that nobody else is taking the time to answer. I appreciate it.
Thank you very much!
Another great test! The galvanized smooth nail surprised me the most.
Thank you!
Not me bro, I used to do a little non-office work and pulled many nails out, my next door neighbor used to own a few apartment buildings (now he is passed away), but he taught me a ton, and his father used to own a construction company. Most people called him Dr. Mott, (psychology) but to me, he will always be TJ. take care........
Looks like that was an electro galvanized nail, the old school hot dipped type were even worse to try and remove!
I think (just an idea) that the coating is loosened up when its hammer into place, pulling up on it jams the zinc against the wood and shank.
Zinc has a ferocious coefficient of friction. It sticks like the proverbial brown stuff. Shame its got no strength.
Would love to see shear strength on these nails/screws. Love the videos!
Thank you!
Yes! That would be very revealing, as drywall screws snap so easily. Deck screws would be the logical choice after witnessing the metallic properties.
I agree, I don’t think and of the screws would hold up as well as the nails in a shear strength test.
I’ve read that’s why they don’t use screws in framing because they snap and nails can bend.
@@NotJustaTool they always snap in the same spot too, right where the radius levels off onto the shank.
Amazing job on this test.
You helped me feel better about the investment I made in a 10 x 20 shed.
I wanted it to hold together in case we got a strong west wind. So even though code didn't require it, I built it on 16 inch centers and I used torx screws all around. That allowed me to build it without a lot of pounding and the screws really locked that thing together tight.
I had a really useful tool my son bought me. It is a battery powered drill with a removable chuck. When you remove the quick release chuck there is a 1/4 inch hex under there that can hold a short tool tip. I put a short #25 torx in there so I could use just one tool. Where I had to fasten at an angle, I would drill a pilot hole, remove the chuck, and then run the screw in with the torx tip. It worked very well for that type application. The chuck fit in my tool pouch when not needed.
Seeing your demonstration helped me justify the extra cost of the screws. I chose the torx because I have had too many phillips strip out, so it is only torx for me from now on.
Thanks for sharing.
was the milwaukee's, bosh's, festool's or dewalt's?
I was amazed that none of the heads tore off.
Imagine what a pilot hole and glue would do for the screws?
Great point on the heads staying intact as well as the incredible strength gained by a pilot hole and glue!
Does a pilot hole make a screw hold stronger? I never knew this
@@ToWhom I would imagine that having a small pilot hole (PH) wouldn't affect the structure of the wood fibers the same way just screwing it without a PH would. Since with a PH, the screw doesn't have to drill its way in. I've notice it makes a difference on hold down strength, especially when you don't want to have a screw strip out the wood.
@@ProjectFarm could you test that with different glues?
@Swampy true, but its still impressive. its a bad day if your pulling out nails and the heads keep breaking off haha
I always remember galvanized having a rough matte finish... which likely contributed to their holding power
Almost certainly,same for the coating probably
@@Shadow_Hawk_Streaming There are two methods of making galvanized nails (and screws). Th e better way is "hot dipped", in which the nails were actually dipped in molten zinc. They were extremely rough and covered with warts, which did contributed greatly to their holding power. Nowadays it's hard to find anything but "electro-galvanized", which is merely a thin smooth coating (not unlike the "smooth candy coating" on M&M Peanuts) with relatively little holding power. I'd like to see him compare the two types.
@@fearlesscrusader I work in steel industry and we now have what’s called ZAM galvanized metal and it’s not a galvanized coating but rather blended into the metal itself.
Great video. I learned a lot from it.
I've done professional remodeling for over twenty years, and 2 1/2" star drive deck screws have become my go-to for just about everything. I can use them indoors or outdoors, and in decks to everything else. The best part about the star drive is the heads don't strip under heavy load. And they're perfect for temporary holds were you want to take things apart again. Their versatility makes them worth every penny.
When I need a shorter screw, I still use drywall screws that are 1 5/8". They're cheap and short enough the heads don't strip out under load. And on small projects they have better holding power than nails.
For those occasions where a hammer driven 16 (or 8) penny nail is called for, I keep coated sinkers on hand. I've always had better success with them than common nails.
Finally, I still use my nail gun for basic framing projects. It's cheaper and faster than screws and they work.
Great tips! Thank you!
@@ProjectFarm It'd be cool to test the spax screws in a followup video. They're a little pricer than drywall, but the self drilling and the hold seem to be top notch, and they're cheaper than those fancy "decking" screws, at least around my neck of the woods.
Also probably worth mentioning that the 'decking' screws you showed are way, way overkill for decking.
me too! I will never buy a philips screw head again. The star heads never strip and much easier to use
spot on
@Dave Gill I said I use nails where applicable. Why ignore what I said?
For many jobs the shear strength of screws is sufficient and their holding strength is the primary importance. I'm sure one can misuse star drive screws. But where I've used them, I've never had one subsequently shear off.
Great video as usual. Thank you!
One thing I noticed. The galvanized spiral shank test. The jig turned allowing the nail to "unscrew" itself from the wood. I believe if the screws had been pulled straight up without the jig and the nail rotating the nail would have had a lot more holding power. One of the reasons they hold better is because as they are pounded in they act almost like a screw, twisting into the wood.
Having tried to remove those type of nails from deck boards I know they hold better than a smooth shank nail. They are a pain to pull out.
Thanks and you are welcome!
Agreed. The test should be modified to restrict the pulling jig to motion on only one axis. Or the nails should be tested in pairs.
I noticed that and was thinking the same thing.
Great testing Todd! A lot of work went into making this video. Nice testing rig. I know what I'll be buying for my next project, thanks to you! :-)
Doug, Thank you very much! By the way, that was a terrific video you published yesterday on removing a stuck key from a deadbolt! That knowledge will come in handy! Thanks again
Thank you for the absurd amount of time you spend educating many people!
You are welcome!
Weld strength comparisons. Spot weld, tack weld, beaded weld, from a stick from a spool etc
Thank you for the video idea!
@@ProjectFarm I would love to see a video like that as well please and thank-you!
is more complicated ,depends on the type of gas used ,or wire ,what type of metal
Just thought of a idea for a video . High heat paints or flame proof coatings , stove paint. Wich is best on exhaust or other applications . As always love the videos keep up the great work!
Thank you for the video idea!
Flat Black paint, because it has more surface area to cool the exhaust, at least that's my experience when rubbing my leg against my YZ250 exhaust pipe. yaaaa ouch eeee..... (p.s. I dont think the paint chemical make-up would do anything for heat dissipation unless it had liquid ceramic in it). .. . . ..
@@andyp3834 I was thinking more for lasting effects but definitely that would be cool to see Wich one dicipates heat faster
rick melson I’m down with that comparison. There’s a lot of misinformation on high heat paint/coatings
Andy P There’s a lot of variation in heat resistant paints including thermal conductivity, emmissivity, as well as the thermal stability of the paint vehicle. There’s a lot of variation in heat stability of polymers as well as the use of inorganic vehicle. I think this could be a very interesting video. BTW, agree on flat black having high thermal dissipation rate.
Great video regarding the hold of fasteners in tension. Fasteners that must resist shear forces is a whole different story. The best deck screw is NOT acceptable for joist hangers, rafter ties or other Simpson type connectors. Simpson joist hanger nails are number gauged and specifically designed to have strength in shear. Beware all DIYers. There are NO acceptable substitutes.
Would LOVE to see how Harbor Freight drill bits last compared to name brands. My HF bits are good for a half dozen holes and then dull. great that you have more selection to continue the job.
Great video idea!
I bet the type of bit worth affect the results a lot. A Robertson bit is probably a lot stronger than a Phillips, for example
An old carpenter once told me that rusty nails were the best for framing houses.
Was he right?
Thanks for All your great videos and please keep them coming.
Yep!
But the old timer didn't have a framing gun.
Thank you for the video idea!
Take it a step further and rust the nails after its in the board.
Good thing I keep the old nails and screws from the stuff I take apart, from time to time I get to re-use them. Sometimes you win and sometimes you lose.
I thought my day couldn't be better and then a saw your video
Thank you very much! Glad you're having a great day!
I love these videos so much. I watch them while I go to sleep because your delivery of information, technical data, and comparisons just make me feel so calm.
Wow, thank you!
@@ProjectFarm thank you for replying!! Was not expecting it at all, just like those deck screws holding 1200 pounds!
Great test and very helpful, but two things to consider. 1) There looked to be a noticeable difference between the holding power of the nails based on how straight or angled they were in the wood. Nails with a straighter entry seemed to hold less compared to the same product at an angle. 2) The Ring Shank nail was at a great disadvantage because it was allowed to spin right out of the hole. If you attached two pieces of wood together and tried to pull them apart, they would not allow that to happen. I would imagine they would perform better than the straight nails, if they were fixed.
Thanks for the feedback.
16 penny. Also i've heard screws have a much lower sheer force vs nails (which bend and flex better in structural situations)
Indeed. You can bend a nail back and forth many times before it snaps in half but, if you bend a screw, it will snap right away.
that's due to the hardness of the screw. which is designed that way. a hardened nail wood shatter and a soft screw wood twist. wood
🤩
Would love to see a video on this topic!
yes BUT the screw will hold it tight for as much higher load preventing anything to move or bend so it may still be superior
I'm curious how much side load each can handle before they bend, break, or pull loose.
Terrific point! I need to test this. Thank you
@@ProjectFarm I think the nail will bend then pull loose and the screw will bend then break off.
as a carpenter, i’m much more concerned with sheer strength. i’d love to see this test.
@@gaybruce while i'd also love to see it tested, I can say form experience that screws are terrible at shear forces compared to nails, which is why they aren't used structurally when framing houses
animefreak5757 i agree. i know the nails would outperform the screws, but to what extent? i always frame with nails, but screws have their place, obviously.
Here in hurricane prone Florida, I replaced the cheap staple gun nails on my wooden privacy fence with deck screws...After watching your testing, I feel very good at the results of my hard work...Thank You...
You are welcome!
Deck screws are awesome compared to 20 years ago, now that we have access to the fantastic cordless impact drivers that are out now. 3" screws are almost easier to run in now than hammering in a 16d nail. Thanks for the test!!
You are welcome!
In the spiral shape nail test, to be fair; the pulling force should be straight. The jig is "unscrewing" the nails
I read the replies to see if someone else made that point. The spiral shaped nails weren't pulling out they were threading out.
Absolutely. In real world use, the decking the nail is penetrating would prevent the rotation. Would be nice to see this test repeated so the nail doesn't rotate.
The spiral nails also appeared a bit smaller in diameter so naturally there would have been less compressive force from the wood on the nail. At least he acknowledged that they were designed for more dense wood.
Yes!! Agreed. Ardox nails are a prick to pull out. He lost me on that one too.
You're right. I know from pulling them out with a hammer those spiral nails are a lot harder to pull out straight.
this guy is a LEGEND, so many classic questions answered on this channel
Thanks!
I love how exact and perfect he is to get the best results when it comes to his videos
Thank you!
The time and effort you put in all your tests Sir always impresses me , and I'm not impressed easily, GREAT JOB as always. Would love to see Project Farm hats for sale ,I think they'd be a hit.
Great suggestion for the hats! I think they would be too.
Damn, you nail and screw fast!
That's what SHE said...
What if you had prevented the spiral shank nail from spinning as it was removed? Like, if a straight edge was provided beside the jig to prevent spinning. The spirals were definitely providing grip if it caused the jig to spin during removal.
Spiral nails in a 20 year old deck pop up with expansion every winter. Use screws.
We use a lot of self tappers through metal into wood. I'd love to see tests on the #14 hex head in wood because that's our go to size. Might as well throw in the #12, #16 and #18 too.
Thanks for the suggestion.
You sir are a legend! Most extensive, intensive & informative test to be found. Keep up the great work chap!, 👍
Thanks, will do!
Enjoyed your post! If shear loads are what you are worried about, which is often the case when framing a house, the appropriate nail should work just fine.
Glad to hear! Thanks for watching!
Now wait a second.. In all fairness, the spiral shank nail "in use" it would not allow the host material to rotate in pull out..
The host material (flooring etc) would most likely be laid out in rows and would force the plank to stay oriented the same direction during the pull by a neighbor..
I think you need to stop that rotation and test again..
Thanks for the constructive feedback
Totally agree.
STILL, great videos.@@ProjectFarm
Agreed i thought it would do alot better
This reminds of a course i took on atomic level dislocations in metals. The greater the distance that the atoms at the site of the imperfect arrangement (dislocation) had to move in order to get to the next stable configuration, the more difficult it was for them to move. This correlates with performance of the dry wall screw. Because the thread separation was relatively large compared to the ring shank and smooth nails that relied solely on friction and random surface bumps, so for the thread to move vertically straight up to the next thread position, it would have to push almost perpendicularly through a thicker section of intact wood.
Thanks for sharing.
Who knew that watching a nail and screw holding strength video would be so good !
Thanks!
Southern accent and 1:34, 2:00,3:22,4:28,7:15
“Holding pair”
Proud Alabamian here! He represents our corner of the USA very well! Keep up that there good work buddy!
I always use screws and I'm glad I do now that I know this!
Thank you!
As other people have also pointed out in the comments. Screws are for pulling force as performed in this test, but lateral force is much more likely to snap a screw in half than a nail. That's why nails are used for vertical applications like framing and screws are used for horizontal applications like decking.
I've used screws in some applications to help hold a piece in place, then nail the hell out of it!
I could've never believed softwood was this strong until seeing this. Fantastic!
Thanks for the feedback.
@@ProjectFarm 3:13 (coated nails), 4:17 (galvanised nails) - it would be useful to add the cost of these too ( their prices, as deducted from the two graphs should be 5.63 cents and 10.61 cents respectively).
The pound / penny chart was a really cool way to normalize the results. Nice job!
Thank you.
Deck screws ARE pricey but you get what you pay for.
You usually don't need that kind of strength though, and certainly not for decking. Decking does require a ton of fasteners though, so I can see why they'd want to charge you a ton for a fastener that's supposedly rated for what you're doing with it (to line their pockets of course).
@@jttech44 True, but I've seen gun shot ring shank forced out by board warp. Go big or stay home. I think overkill on outdoor projects pay in the long run if you spend more now and have to fool with it a lot less later. We rebuilt double swing garage doors last week. You guessed it. DECK SCREWS!
@@bbigrocker1 If you have board warp you have plenty of other problems outside of fasteners though, namely using the wrong lumber for the job.
@@jttech44 Sorry, but that's totally incorrect, it's privacy fence and some of the picket do warp over time.
@@jttech44 actually your incorrect I've seen PT lumber warp horriably deck screws are best end of conversation hands down best for decking holding anything else down
I think the spiral shank screw would have performed much better if it had been prevented from twisting. This is its holding characteristic. In the case of two boards nailed together, the top board would exert some force to prevent the nail from twisting as it is drawn from the lower board. Just a thought.
Thanks for the feedback.
EURO pallets nails.
If it says "EUR" good luck extracting them.
It's as difficult as extracting these unelected EU parliament members out of their undemocratic positions.
@@finlandjourney6065 and ripping the heads off doesn't help too
AWESOME testing. I would mention the wood species and grain orientation as that has a huge effect on the pull out force. Maybe you did, if so I missed it. Keep up the informative work !
Thanks, will do!
The coated deck screw holding power is really awesome. But their real advantage is driving the screw through a 2" deck board and 1 1/2" into a joist without it binding and stripping the head.
Video ideas:
Which brand of treated lumber has the lowest amount of screw slippage.?
Which brand of plywood is the most weather resistant?
What brand of wood screw is most resistant to shear force?
Which brand of screw is best for securing a corrupt politicians coffin?
What type of nail is best for nailing politicians to crosses :)
coffin?
just use them as fertilizer.
@@AussieGearReviewer nails that have been soaked in poison and fecal matter would be good.
Drywall screws are very brittle but, like any screw, they will not migrate out or loosen in the wood overtime
from wet to dry cycles like nails especially when used in decking, siding or fence pickets.
As shown here galvanized, twist and ring shank are best in soft woods and hold great in harder
woods but, are harder to drive even if they don't bend when hammering.
Thanks for sharing.
I just watched the first part of the video and noticed that your 16 d framing nail that required 160 lbs was nailed through a knot in the wood and the one did not do as well wasn't......
Todd! You are the working mans engineer! Another great video and I especially like your homemade test equipment! Keep up the good work my friend!
Thanks, will do!
hoped you saved those 2x4s, its like gold now! 🤣
I use coated ring shank nails and coated deck screws at work because I tested them and they are the best.
Thanks for the suggsestion.
Nail heads are flat against the wood ,therefore will stay with the nailed wood when pulled from the base wood. But screws heads are not flat to the woo but will hold more strongly than the nails will to the base. The screw thread will not hold the top wood since the top part of it have no threads to hold the top wood, and you can pull out the top wood but not the screws(remember ,the heads aren't flat again the wood allowing to push the wood fiber to the sides instead of down) on the opposite nails will hold to the top wood but to the base wood. This is why you can pull the wood. and nails come with it, not so with the screws. This could be another test suggestion. Great test.
Thanks for the video idea.
In the era of hand wrought nails it was common for builders to use nails that were "too long". They would intentionally do that so they could bend the protruding tip of the nail over to increase holding power. I would love to see a video comparing nails like that to the holding power of screws
Thanks for the suggestion.
the way the experiments are set up. beautiful work
Thank you very much!
Man minute in and you mentioned nails not treated. I never even thought about that when building stuff.
Thanks for the feedback.
An interesting nail is the "cement coated" nail, pneumatically driven. It's hard to remove the nail without ripping the head off. As most framing is done with pneumatic equipment, screws would be secondary, more costly and slower in speed. Some coatings are heat activated, heat from the rapid insertion of the nail using a pneumatic nailer. It would be good to test pneumatically driven nails as this is the industry standard.
Thanks for the suggestion.
The spiral shank nail was allowed to twist on it's way out. If you had this nailed into siding or decking it would not twist while being pulled out. Project Farm I am absolutely sure you thought of this.
Perhaps making a box plot showing the quartiles for each set of data would be preem. Standard deviation would be great for showing consistency in the items.
Thanks for the constructive feedback.
I still don’t believe one of those nails could hold me up
Please send these videos to your regional building departments around the country.
I'm sick of building codes that force the use of inferior fasteners for many parts of construction. A purpose built screw would be so much better.
8:57 thats literally what a toyota aygo wieghs nearly thats a freaking car!
Wow!
I would give this one two likes if I could!
My deck screws snapping problem is undoubtedly related to my creaky, wobbly deck. What kind of test could measure strength against shear or torsional forces? I use deck screws for everything. Now, after watching your video, I know why!
Thanks a million! Your usual excellent work!
Any insight into how you decide on a test protocol? I would never have thought of 7 samples, because I have so little experience with such variability.
Thanks!
Love this channel no bs story telling he cuts to the chase
Thanks for the feedback.
It would be interesting to see a comparison between modern nails and square cut nails.
Thanks for the suggestion.
The very best construction screw is Phillips Brand, Phillips II screws...high corrosion resistance, high tensile strength and tough hardened strip resistant head. Used to be offered by Home Depot under the name DeckMate but now must be bought direct from Phillips. (Available at Amazon at comparable cost).
Home Depot still offers DeckMate but the torx head screw is a much inferior screw.
Thanks for the feedback.
I noticed that when testing the spiral nail the pulling jig twisted at the pitch of the spiral as it applied tension. I wonder if the nail would have fared better if the pulling jig was restricted to movement along one axis and not allowed to twist.
I’ve been using galvanized nails or deck screws whenever and wherever I can when I do work on my home.
Thanks for the feedback.
The lowercase 'd' on nails is the "penny" a 16d nail is called that, because it used to cost 16 cents for one pound of them. A 8d was 8 cents for a pound.
Thanks for the feedback.
I was needing to know exactly what screw is best but after this I’m gonna get some decking screws for reenforcing my entry door
Don’t know if anything can beat these decking screws wow
Thanks for the feedback.
It would be great to do a test for shear strength of the exact same fasteners !
Thanks for the suggestion.
Next time im gonna chose right nail! Thanks for the professional testing.
You are welcome!
The spiral now works because the twisting holding power your mechanism allowed it to twist out so basically unscrewed it if you held it from pivoting it would’ve probably had a better holding power
Thanks for the feedback.
Terrific video. I am impressed by the amount of preparation that you do for all your vidoes.
Thank you very much!
I know you take video / test suggestions for consideration. I would humbly suggest testing what screw "heads" (?) are best for typical traits. As in handtool and smaller powertool sizes, not big machine, impact wrench bolts. Maybe machine type threads, wood type or both?
Tests suggestions: Torque before cam-out or head snaps, downward force needed vs twisting force, how well they fare in terms of extracting a screw with (badly) corroded screw "head", how difficult a moderately stripped one is to extract / how much stripping before extraction with a normal screwdriver/bit is no longer doable..?
Test subject type suggestions: slotted, philips, pozidriv, robertson, torx, internal hex / allen, triple-square. Maybe throw in an oddball anti-tamper like tri- or fourwing?
Thanks for the video idea.
@@ProjectFarm Just as a sidenote, as I realize it got quite expansive. All these variables wouldn't need to be included in a test. Just a big bunch of examples ☺ If you ever decide to do one on something along these lines, I have full faith in your judgement when it comes to deciding what to include and not.
Thank you for what you're doing here with your channel. It provides substantial value, with plenty of thoughtfulness and integrity.
This may be a testament to me not having much excitement in my life but I freakin loved this video.
Thanks so much! Glad to hear!
I salvage buildings. When I come across old galvanized nails, I usually just cut around them ESPECIALLY if they are twist.
Thanks for the feedback.
I love drywall screws! I use them on everything I can indoors. They are cheap, you don't have to hold a hammer to get them in, and they are strong
Thanks for sharing.
One issue with testing the spiral nails that you did not mention is the instability of your setup. It can spin freely, thus not using the spiral for what it is worth. A piece of wood that is attached with this type of nail will not turn, and you get a much better grip, I would think.
Thank you for the feedback
Awesome video! Those Deck screws are no joke!
Thanks so much!
Brilliant tests....simple logical and believable...well done
Thank you!
Id love to see this test on 16 gauge construction stapler. Them dam things have to be in the 800lb range.
I really enjoy watching these videos it puts numbers to the materials I use and from personal experience the dexters he uses in this video being the tan color or some of the worst that screws to use in my opinion I don't know why but the colors matter tan and green all the worst too Brown is a good one and gold is the best they're just a coating but it makes a difference
Thanks! Thanks for the feedback.
Video Suggestion: Battery Framing Nailers versus each other, then against pneumatic framing nailers.
Thanks for the video idea.
Fan and a subscriber. Can u do a video of the best way to clear foggy headlights please!?
at 5:13, the nail is clearly at an angle before trying to pull it orthogonal to the board. And a lot of the nails you were pounding in the beginning seemed at an angle as well. That's probably where a significant portion of each lot's large range is coming from.
Thanks for the feedback.
IDEA for Construction Materials PLAYLIST: test 3,000, 4,000 & 5,000-lb concrete. Similar idea: test failure load of 2x6, 2x8, 2x10, and 2x12 beams.
Thanks for the suggestion.
Didn't think I'd be sick in bed watching nail reviews when I woke this morning but here we are
Thanks for watching. Hope you get well soon!
Do you understand that the screws have the other spin on the up that you never tested?
Wow Todd thst vid was so complete and informative , stuff i will remember forever , thanks so much ....
Very welcome!
I like it when the title says let's find out! I then want to find out.
Glad to hear!
The best part is the screws are not 100% driven into the wood, yet, so it has even more potential holding strength. 👍
Thank you for the feedback
Very scientific and in-depth study. Nice!
Thank you!
Can you test multiple fasteners at opposing angles. Nail should hardly ever be driven completely 90, more like 10-15 offset. Great video as always.
Thanks! Thanks for the suggestion.
I am completely unsurprised. I always figured screws had to be better at holding stuff together but it's nice to see it proven.
Thanks for sharing.
wow this is amazing science here, interesting how different nail coating can make a difference
Great point! Thanks!
Dude, I love how you do life.
Thanks for watching!
Something I'm curious about: is it safe to say that drywall and/or deck screws have effectively rendered the old-style tapered wood screw obsolete? With pull-out strength like this, it's hard to imagine anything else being superior.
I realise this rather late to the party but i thought best practice with nails is to always drive them in at an angle. This allows them to use the shear resistance function the best. Screws go up and down while nails go in at an angle.
Thanks for the feedback.