Do Nails or Screws Have the Most Holding Strength (not shear strength)? Let's find out!

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Added 3 years ago by intercd

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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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