1-12 x 4 1/2 Socket Cap Screw Alloy

1 3/8-12 x 3 Socket Cap Screw Alloy

1/2-13 x 6 1/2 Hex Cap Screw SS 18-8 (A2)

1-8 x 6 Hex Cap Screw SS 316 (A4)

#1 square recess drive and trim head with a Type 17 tip for faster starts and to resist splitting in hardwoods

12 x 2 Simpson Flat-Head Self-Drilling Screw w/ Wings - Square Drive 410 SS - Carton (2500) SDS Plus X-Cutter Hammer Drill Bits 1-12 x 4 1/2 Socket12 x 2 Simpson Flat Head Self Drilling Screw w Wings Square Drive 410 SS Carton (2500) . Fasten wood, plywood and fiber cement to heavier steel up to . 209" thick #3 square drive Machine screw thread, threaded full length 2 1 2" length for 2 x 4 wood header; 2" length for 1" and 3 4" boards Flat countersunk head with self countersinking nibs Shank slot enhances thread formation in steel and removes exhaust Wings above drill point provide clearance