Simpson #12 x 4" 316 SS Deck-Drive DWP Wood Screw, T27, Flat Head Quik Drive Compatible Fasteners: Drives 1-in

Compatible Fasteners: Drives 1-in

What threading capabilities does the GHB-1236 offer

Patented EB-GUIDE predrill guide provides precise fastener angle alignment for consistent biscuit installations

drill bit to bore the hole and a 3/4 in

Mortising Bit 1/2"

Simpson #12 x 4" 316 SS Deck-Drive DWP Wood Screw, T27, Flat Head Quik Drive Compatible Fasteners: Drives 1-inSimpson Deck Drive DWP Wood Screw in #12 x 4" Type 316 Stainless Steel is a heavy duty fastener engineered for deck, dock, boardwalk, and general exterior wood applications where superior corrosion resistance is essential. Featuring a specially designed sharp point and unique box thread profile, this flat head wood screw drives smoothly into hardwood, engineered wood, and polymer decking materials making it a reliable choice for coastal, seaside, and