3 USS Flat Washer Plain

hardness will range from HRC 31-39

As with all fasteners you’ll find in our selection

Zinc plating meets ASTM B-117 for salt spray corrosion

50 x 45 Socket Set Screw Cup Point DIN 916 Black Oxide Alloy

3/8-24 x 3 1/4 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (325) Round Split Drive Anchors Zinc Plated 3 USS Flat Washer Plain3 8 24 x 3 1 4 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (325) . 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