there is no secondary tightening operation required which greatly reduces the overall cost of an anchor installation

7/8-9 x 8 Hex Cap Screw SS 316 (A4)

3/8 x 3 Titen HD Concrete Anchor Zinc Plated (50)

9 x 4 Simpson Trim-Head Wood Decking Screws - Square Drive 305 SS - Bulk Pail (1000)

1 1/4-7 x 5 1/2 Socket Cap Screw Alloy

10 x 3 1/2 Simpson Bugle-Head Self-Drilling Screw - Square Drive 410 SS - Box (100) Fiber-Cement Screws Stainless Steel there is no secondary tightening10 x 3 1 2 Simpson Bugle Head Self Drilling Screw Square Drive 410 SS Box (100) . Fasten wood, plywood and OSB panels to steel studs #2 square drive bugle heads drive flush with work surface Tapping screw threads, #3 drill points Drilling thickness capacities: up to . 083" (68 mils, 14 ga.) for #6, up to . 142" (118 mils, 10 ga) for #8 and up to . 177" for #10