Zinc plated grade 8 steel, 5/16"-18 x 2-1/2", Hex flange head
US Fasteners, Zinc plated grade 8 steel, 5/16"-18 x 2-1/2", Hex flange head |
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Flange boltsFlange bolts have a flange on the bottom of the head that distributes the load like a washer. |