Typical hardness is HRB 70-100

3/4-10 x 3 3/4 Hex Cap Screw SS 316 (A4)

31/32 x 6 Reduced Shank Drill Bit (1/2 Shank)

Finished Hex Nuts in 316 stainless steel are for use with stainless steel bolts or screws with a specified minimum tensile strength equal or less than the specified proof stress of the mating nut

3/16 x 4 Powers Combo Mushroom Toggle Bolt Zinc Plated (50) Titen HD® Heavy Duty Screw Anchors Mechanically Galvanized Typical hardness is HRB 70-1003 16 x 4 Powers Combo Mushroom Toggle Bolt Zinc Plated (50) . The Toggle Bolt is a spring wing type hollow wall anchor designed for use in block, wallboard and other hollow base materials. The Toggle Bolt is a two part assembly consisting of a machine screw and a spring wing toggle. Sizes range from 1 8" x 2" to 1 2" x 6" with combo round, flat, mushroom, tie wire or slotted hex head styles. Download Powers Toggle Bolt Technical Data