![Upgraded Version 5/8-18 X 1 1/4 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic Usa (25) Kit [zCDMZab1]](https://cdn.shopify.com/s/files/1/0974/6070/products/media_a1892075-5594-4924-9b39-a3521e61f291.jpeg?v=1481148329)
Upgraded Version 5/8-18 X 1 1/4 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic Usa (25) Kit [zCDMZab1]
Upgraded Version 5/8-18 X 1 1/4 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic Usa (25) Kit [zCDMZab1] . 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 spe
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Upgraded Version 5/8-18 X 1 1/4 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic Usa (25) Kit [zCDMZab1]
Upgraded Version 5/8-18 X 1 1/4 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic Usa (25) Kit [zCDMZab1] . 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 1/2 inches is HRC 33-39. On diameters over 2 1/2 inches, hardness will range from HRC 31-39. Tensile strength on diameters 1/4 to 2 1/2 inches is a minimum of 150,000 psi. Diameters over 2 1/2 inches have a meet a minimum of 140,000 psi.
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