3/4-10 x 11 A307 Grade A Carriage Bolt HDG

Meets ASTM B117 for salt spray corrosion - 500 hours

5/8-18 x 4 Hex Cap Screw SS 18-8 (A2)

Use for projects exposed to harsh marine or many chemically caustic conditions

1 1/2-6 x 4 Socket Cap Screw Alloy

5/8-11 x 4 Grade 8 Hex Cap Screw Plain Domestic USA (90) 1 3/8-6 Socket Cap Screws Alloy 3/4-10 x 11 A307 Grade5 8 11 x 4 Grade 8 Hex Cap Screw Plain Domestic USA (90). 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 diameters 1 4 to 2