9/16-18 x 5 1/2 Socket Cap Screw Alloy

8 x 2 Simpson Bugle-Head Self-Drilling Screw - Square Drive 410 SS - Carton (2500)

1/2-13 x 2 Grade 5 Hex Cap Screw Plain Domestic USA (250)

1/2 x 13 Titen HD Concrete Anchor Zinc Plated (20)

9/16-12 x 1 1/2 Grade 5 Hex Cap Screw Plain Domestic USA (275) HeadLOK Heavy Duty Flathead Fasteners 9/16-18 x 5 1/2 Socket9 16 12 x 1 1 2 Grade 5 Hex Cap Screw Plain Domestic USA (275). Grade 5 Hex Cap Screws are manufactured in the USA from medium carbon steel. Our Grade 5 material meets or exceeds SAE J429 Grade 5 specifications. All products are manufactured with rolled threads. Typical hardness on diameters 1 4 to 1 inch is HRC 25 34. On diameters over 1 inch to 1 1 2 hardness will range from HRC 19 30. Tensile strength for diameters 1 4 to 1 inch is a minimum of