17th October 2019

popularmechanics
18

When should you use a screw instead of a nail?

They have stronger holding abilities (tensile strength) than nails and can draw pieces together. The best example for when to use a nail versus screw is building a deck. Nails are used to attach the joists to the deck framing, and screws are used to fasten the deck to the frame. The right fastener for the right job.

What kind of nails to use with pressure treated wood?

The manufacturers of ACQ, CA, ACZA and CCA and the treated wood industry are all recommending hot-dipped galvanized nails and stainless steel nails and screws with their treated wood products. Furthermore, they specify that the fasteners meet the ASTM A-153 specification for hot-dipped galvanizing.

Can I use screws instead of joist hangers?

It's true that hot-dipped galvanized box nails aren't as thick as common nails, but they are the acknowledged choice for outdoor work. Indoors or out, for standard-type single joist hangers, use only 1-1/2 in. The manufacturers agree: Never use galvanized deck screws or drywall screws to install joist hangers.
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