ASTM A193 B7 Screw, 5/16 to 4 Inch, 30 to 1000 mm

Name: ASTM A193 B7 Screw
Standard: ASTM
Material: A193 B7
Size: 5/16 to 4 inch
Length: 30 to 1000 mm
Thread: 4-1/2 UNC
Grade: 8.8
Application: Oil Pipeline, Machinery, Chemical Industry, Building

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Source: https://www.valvegasketboltnuts.com/astm-a193-b7-screw-5-16-to-4-inch-30-to-1000-mm.html