7/8-14 x 4 Grade 5 Hex Cap Screw Zinc Plated

8 x 2 1/4 Simpson Self-Drilling Fiber-Cement Screws 410 SS - Box (100)

Proof load strength is 175

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

9/16-18 x 4 1/2 Socket Cap Screw Alloy

7 x 3 Simpson Trim-Head Self-Drilling Siding Screw - Square Drive 410 SS - Carton (1000) fully-threaded 7/8-14 x 4 Grade 57 x 3 Simpson Trim Head Self Drilling Siding Screw Square Drive 410 SS Carton (1000) . Attach wood siding, wood panels and metal trim to steel studs #1 square drive trim head, . 230" head diameter, #3 drill point Threaded 2 3 of overall length Drilling thickness capacity: up to 0. 125" (111 mils or 11 ga.)