![5-star Rated 1/2-20 X 3 1/4 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic Usa (25) - Beat The Rush [168QdGZR]](https://cdn.shopify.com/s/files/1/0974/6070/products/media_4e1e0322-388c-4420-9390-7a84211a5247.jpeg?v=1481148184)
5-star Rated 1/2-20 X 3 1/4 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic Usa (25) - Beat The Rush [168QdGZR]
5-star Rated 1/2-20 X 3 1/4 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic Usa (25) - Beat The Rush [168QdGZR] . 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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5-star Rated 1/2-20 X 3 1/4 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic Usa (25) - Beat The Rush [168QdGZR]
5-star Rated 1/2-20 X 3 1/4 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic Usa (25) - Beat The Rush [168QdGZR] . 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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