5/16-18 x 6 Hex Tap Bolt Silicon Bronze

1/4-28 x 3 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (100)

Self-countersinking nibs under head insure seating of screw head flush with work surface

43/64 x 6 Reduced Shank Drill Bit Cobalt (1/2 Shank)

1/4-28 x 1/2 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (3300) 1-8 Socket Set Screws Cup Point Alloy 5/16-18 x 6 Hex Tap1 4 28 x 1 2 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (3300) . 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