Nails vs. Screws - Testing them out
For years I've built with only screws. I have a background in theatre, where we used screws for everything - crappy drywall screws to boot! Well, after years of building the platforms I performed on, I've found better screws and never really learned how to use a hammer. Well, except to hang pictures and demolition, of course.
Well, the building inspector told me that screws were not approved by Simpson for use in their Strong Ties. I examined their literature - sure enough, they say it in big letters - NO SCREWS. USG connectors do allow #8 1.5" wood screws though. So does a stair tread bracket manufacturer.
Simpson says no - others say yes. Maybe Simpson knows best - I decided to test them out. I bought their 1.5" galvanized nails, as well as some 8d Bright Common and 16d Bright Common nails (Grip Rite). I then built a test mechanism: One 2x8x14' attached horizontally to another with a strap hinge. The top board was kept off the ground by 4 legs, the bottom one was a lever that i would use to pull away from the top board - the hinge at the end being the fulcrum.
I then used a piece of piece of 18 ga Simpson strap to go across both boards at differing points, usually 6", but sometimes 9" or 12" from the fulcrum. I would attach the strap to the boards using nails or screws. The screws I used, BTW, were McFeely's #10 1.5" round washer head, Grip Rite #8 3" Primeguard Plus, and Phillips Deck Mate #9 3.5" screws.
I'm wondering how you guys in the field might call this.
1.5" 8d nail vs. 1.5" McFeely's screw - Winner?
2.5" 8d nail vs. 1.5" McFeely's screw - Winner?
3.5" 16d nail vs. 3.5" Deck Mate Screw - Winner? (Hint - the shear force was over 2500lbs)
Rebuilding my home in Cypress, CA
Also a CRX fanatic!
Edited 6/12/2005 1:38 am ET by xxPaulCPxx
Edited 6/12/2005 5:32 pm ET by xxPaulCPxx