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What Grade are your U-bolts?

U-bolts from 3/8 to 9/16 diameter are Grade 5, while 5/8 to 1 1/4 diameter are Grade 8.

The physical properties are 150,000 PSI Minimum Tensile Strength; 130,000 PSI Minimum Yield Strength; 120,000 PSI Proof Load; 35% Reduction of Area; 10% Elongation. U-Bolts produced to SAE-J429 specification. This material is a cold drawn, stress relieved, micro-alloyed, 1541 modified steel. This steel cannot be welded on due to the orientation of the grain of the steel.

Tag: ubolt

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