Its deep cutting

3/8-24 x 1 1/4 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (800)

7 for torsional strength & drill speed

1-14 x 2 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (10)

0.22 x 6 3/4 Simpson Strong-Drive® SDW EWP-PLY Screw Black E-coat™ - Carton (500) 1 1/2-6 Socket Set Screws Cup Point Alloy Its deep cutting0. 22 x 6 3 4 Simpson Strong Drive SDW EWP PLY Screw Black E coat Carton (500) . The Strong Drive SDW EWP Ply screw is a high strength structural wood screw specifically designed for fastening multi ply wood members, such as engineered wood products and solid sawn lumber. The SDW EWP Ply installs easily with no pre drilling and is available in optimized lengths for fastening 1 3? 4" engineered lumber, such as structural composite lumber (SCL). The