I am going to finish out the walls of my shop with 3/4" plywood. I will be screwing it into 4" C-Purlins What is the correct screw and what would be the best length screw to use for going thru wood into metal.
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Self tapping 1.5"-2" Star head -
Self drilling Torx countersunk flathead. 1.5”Comment
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I used self drilling sheetrock screws in mine and it worked goodComment
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self reamer & tapping screws, we use these on trailers for treated wood and they work great. Can be found at Home Depot or lowes as well.
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When I was putting up the 2x4s, under (perpendicular) to my roof perlins, I used these.
They will tap through the metal, but it takes forever. I drilled a pilot hole, through the wood and metal, and then put the screw in. They worked well; I especially like the Torx head. Your bit won't spin like a phillips will.Comment
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Metal screw question
They’re called ply-metal screws. They have wings that drill the hole in the plywood bigger than the threads. The wings break off when the self tapping screw tip goes through the purlin. Check with a fastener company. I get them from seal-tite.
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These here. Used them a lot re-decking trailersOriginally posted by FIRETX12 View PostThey’re called ply-metal screws. They have wings that drill the hole in the plywood bigger than the threads. The wings break off when the self tapping screw tip goes through the purlin. Check with a fastener company. I get them from seal-tite.Comment
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You can get these at McCoy's.Originally posted by FIRETX12 View PostThey’re called ply-metal screws. They have wings that drill the hole in the plywood bigger than the threads. The wings break off when the self tapping screw tip goes through the purlin. Check with a fastener company. I get them from seal-tite.Comment
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These are what we used. They work great.Originally posted by KDinTX View Postself reamer & tapping screws, we use these on trailers for treated wood and they work great. Can be found at Home Depot or lowes as well.
https://www.homedepot.com/p/Teks-10-...1380/100160285Comment
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I just used some heavier versions of the teksin the HD link. I was fastening 2x4’s to 3/16” and 1/4” steel with a small Milwaukee impact drill driver with zero problems. I was impressed to say the least. You should get by with #10’’s.Originally posted by KDinTX View Postself reamer & tapping screws, we use these on trailers for treated wood and they work great. Can be found at Home Depot or lowes as well.
https://www.homedepot.com/p/Teks-10-...1380/100160285Comment
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metal self taping with socket head,, i have done plenty, i have also used a hilti gun with nails and blanks when i was doing 2x4's to metalOriginally posted by tpack View PostComment
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