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Unistrut channel nuts are manufactured from mild steel bars, and after machining operations are completed, they are case hardened, assuring positive biting action into the inturned edge of the Unistrut channel. The standard channel nut conforms to ASTM A576GR 1015 modified and A1011 SS GR 45. Screws conform to SAE J429 GR2 (also meets and exceeds ASTM A307). Proof load 55KSI, Tensile Load 74 KSI. |
