5/16 Heavy Duty Jobber Drill Bit

1-8 x 2 3/4 A307A Hex Bolt Zinc Plated

3/4-16 x 5 1/2 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (25)

1 1/2-6 A194 2H Heavy Hex Nut Hot Dipped Galvanized

Zinc plating meets ASTM B-117 for salt spray corrosion

3/8-24 x 5 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (225) 9/16-18 Socket Cap Screws Alloy 5/16 Heavy Duty Jobber Drill3 8 24 x 5 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (225) . 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