Which Type of Nail or Screw Has the Most Holding Strength? Let's find out!

  • Published on: 25 March 2019
  • The difference in holding strength 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. The Project Farm channel offers 100% unsponsored content and doesn't try to profit from Amazon products using the affiliate program. The goal is to provide viewers with unbiased reviews to help them save time and money. 100% of video ideas come from viewers. Thank you all very much for offering video ideas. It keeps things fun and interesting. Also, thank you very much for supporting the channel by watching the commercials and through Patreon support. https://www.patreon.com/projectfarm

    This video is only for entertainment purposes. If you rely on the information portrayed in this video, you assume the responsibility for the results. Project Farm LLC
  • Runtime : 13:10
  • Seafoam additive oil crankcase sea foam lucas marvel mystery oil marvels marvel mystery oil seefoam Sea foam Seefoam See Foam does seafoam work wd-40 project farm amazon basics oil mobil 1 synthetic oil which nail has most holding strength spiral shank galvanized nail coated sinker uncoated 16 penny 16d nail deck screw strongest nail ring shank nail nail testing nail strength screw strength project farm nail strength test nail holding strength


  • Wulfrune
    Wulfrune   2 days ago

    Do you think you could do some tests on Viagra and its variants?Go on, let it run.... picture it in your mindStopped shuddering yet?

  • ableite
    ableite   2 days ago

    AFAIK, when nails rust they lock up even better

  • Devon bingham
    Devon bingham   2 days ago

    I feel like the strength of the wood has some play in the amount of force it takes to pull it out

  • Kevin McGee
    Kevin McGee   3 days ago

    I find it amazing and hard to imagine that literally a single nail could support the weight of a grown person, and five screws could hold up a car!

  • Al Taloma
    Al Taloma   5 days ago

    Shear strength, yes. But also, perhaps, an off-axis pull or something where the fastener bends during the pull? I've found that some screws let go on off-axis use. They tend to be very brittle in the transition zone between the threads and the shank, implying either excess work hardening or a non-tempered state. These are inexpensive commercially available screws and nails, so one wouldn't expect tempering as one would expect in a grade 8 bolt. This video had a great set of tests, very well thought out and performed. Oh, one little criticism. The "d" in their sizing callouts is termed "penny", as in a 16 penny nail.

  • searcher3x
    searcher3x   5 days ago

    you didn't include square nails. while i agree the with screws findings, square nails are supposed to be amazing.

  • Drew M. Short
    Drew M. Short   6 days ago

    Wife - "are you seriously watching a video about a guy pulling nails out of wood??"Me - "yes hun! It's science and going to be a deciding factor on that porch you want so badly!"Wife - "*ugh* whatever..."

  • Jnathan Nger
    Jnathan Nger   1 weeks ago

    huh i would have thought that the ring shank wouldve needed to sit and let the wood swell back into the rings to get its bite

  • James Kemp
    James Kemp   1 weeks ago

    Try the spiral nails again but don’t let them spin

  • SDMacMan
    SDMacMan   1 weeks ago

    Do a test on how much weight a wall hung kitchen cabinet can hold with 2 screws and with 4.

  • Brian Johnson
    Brian Johnson   2 weeks ago

    My grandpa said he used to use cement coated nails for load bearing strong ties, I wonder how they would fare

  • Speed Cuber
    Speed Cuber   2 weeks ago

    The reason some are stronger than others also depends on the angle that you pull from, if a nail is slightly tilted, then it will be harder to pull straight up.

  • John
    John   2 weeks ago

    You should do tile saw blades!!

  • oh yeahyeah
    oh yeahyeah   3 weeks ago

    The fact that just one screw could hold up to 5 men is pretty mindblowing

  • Jeff Frericks
    Jeff Frericks   3 weeks ago

    This was a great test, I knew this, but you verified it.

  • Jason Burguess
    Jason Burguess   1 months ago

    Here's an idea for you: diesel generator running anhydrous vegetable oil v.s. regular diesel for how much time per gallon. Clean vegetable oil is key and absolutely no water ( boil it first if in doubt) I ran a 47' school bus on waste veggie oil and got an astonishing 26 mpg on veg and an abysmal 8mpg on pump diesel. Would be interesting to see how a generator performs as far as time per gallon. Thanks. P.s. love your videos keep up the good work!

  • Herbert Guo
    Herbert Guo   1 months ago

    Well done !May I share a safety tip: When using the mitre saw, do not cut an object without holding it down securely. The object trapped between the blade and the stop may "explode". You can move the stop to the left side of the blade, so you can hold down the piece to be cut with your left hand.

  • laserleftfoot ttt
    laserleftfoot ttt   1 months ago

    I like screws over nails. Pounding in nails is so noisy. Screws are quiet and they can be reused

  • Parker Mathies
    Parker Mathies   1 months ago

    I don’t actually use most of the items in the videos but I like to see them

  • Michael Howe
    Michael Howe   1 months ago

    And when you are preparing all of your boards you need to make sure there’s no knots in them because when a nail goes into a knot it is ten times stronger

  • Andrew McFadden
    Andrew McFadden   1 months ago

    Hydrogen peroxide, salt and vinegar if your quick rust-maker then?

  • Dan Gauthier
    Dan Gauthier   1 months ago

    I don’t understand how an ardox nail is last, I took enough nails out to know commons come out much easier than ardox, strange!

  • Michael Howe
    Michael Howe   1 months ago

    And you are missing the best ones on the market The paslode Coated 30° framing nail you put one of those in an LVL and you’ll never get it out

  • Michael Howe
    Michael Howe   1 months ago

    Hay you don’t have to test these things just ask me and if will tell you the answers

  • TriddickXL pitbull
    TriddickXL pitbull   1 months ago

    great video thank you could you do a video on the strength of threaded inserts in wood

  • John B
    John B   1 months ago

    Idk why but i cant watch your videos out out a dip of copenhagen and a few budwisers... Just feels right

  • loki asguardian
    loki asguardian   1 months ago

    Awesome video. Somewhat related to this, I have always been curious about all of the different types of screw/bolt head patterns out there e.g. philips, slot, torx, allen, hex, etc. I know that in some cases these different patterns are designed to protect fasteners from damage caused by over tightening (or permit extra tightening). However, given the overwhelming amount of fastener types there are, I can't help but suspect that many are simply designed to force people to buy more tools. Perhaps you could do a video on the top 10 most used fastener patterns and see if the maximum applicable torque really differs significantly among them. Further it would be cool if you found a car or truck that used a bunch of different fastener patterns and see how the factory torque spec compares to what the bolts tolerate. One could then speculate as to whether the use of these various fastener types was in fact warranted or was the manufacture trying to force small mechanics into buying extra tools in order to service their products.

  • Gary Dodgson
    Gary Dodgson   1 months ago

    I have worked on buildings 170 years old held together by rusty nails ,the only thing they used screws for was hinges & door furniture .All stone or brick buildings were plugged out with wooden plugs or wedges & door frames & windows nailed with untreated steel nails .Never use a screw were a nail will do .Pre treated decking wood is usually only guaranteed for 15 years ,even if untreated screws or nails used ,they will well out live the structure. Only use treated screws or nails ,for decorative purposes ,or on plaster board that’s getting coated with board finish plaster so rust doesn’t come through the plaster .

  • Tino K.
    Tino K.   1 months ago

    I love your tests and videos Ty!

  • Cadmus Curtis
    Cadmus Curtis   1 months ago

    It's clear to me the spiral nail was spinning out, unscrewing that's why it was so low. Great rest but shoulda locked up the big so it couldn't spin with the spiral nails

  • 1000Gbps 1000Gbps
    1000Gbps 1000Gbps   1 months ago

    I think the huge differences in loose/max forces between nails or screws are in fact very dependent by the density of the wooden blocks despite that you cut them from one piece

  • NobleNobbler
    NobleNobbler   1 months ago

    Really need to stress that these pull-out tests only test one metric and in many cases, that metric is useless.

    DOUGLAS R. C.   1 months ago

    How about a comparision of devices designed to prevent the stealing of gas from a car ?