Hardness: Rockwell hardness ranges from B68 to C32

TITEN® screws are 3/16" and 1/4" diameter masonry screws for attaching all types of components to concrete and masonry

57/64 x 6 Reduced Shank Drill Bit Cobalt (1/2 Shank)

1 1/4-7 x 15 Socket Cap Screw Alloy

3/8-16 x 3 1/4 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (50) 5/8-18 Hex Cap Screws 18-8 Stainless Steel Hardness: Rockwell hardness ranges from3 8 16 x 3 1 4 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (50) . Grade 8 Hex Cap Screws are manufactured in the USA from medium carbon alloy steel. In diameters 1 4 to 1 1 2 inches our Grade 8 material meets or exceeds SAE J429 Grade 8 specifications. Diameters over 1 1 2 inches meet or exceed ASTM A354 Grade BD. All material is manufactured with rolled threads. Yellow zinc plated bolting will meet or exceed ASTM F1941. Typical hardness on