Typical hardness on diameters 1/4 to 1 inch is HRC 25-34

1-14 x 5 1/2 Grade 5 Hex Cap Screw Zinc Plated

1/2-13 x 3 1/2 Hex Cap Screw SS 316 (A4)

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

(A5™) 3/16 ALLIGATOR® Flush Mount Anchor Nylon (200)

3/8 x 5 Powers Round Toggle Bolt Zinc Plated (25) 5/8-11 Hex Cap Screws 316 Stainless Steel Typical hardness on diameters 1/43 8 x 5 Powers Round Toggle Bolt Zinc Plated (25) . 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