These custom low hex head grade 5 bolts were manufactured at 30,000 pieces for our long time customer, with zinc clear finish. Fully threaded with 1" of 5/8-11 thread pitch these parts came with a low hex head measuring .291-.316" in height and .922-.936" across the flats. A 15-30 degree standard chamfer was added around the corners and flats. The narrow head height was critical for the tight constraints in our customer's assembly application.
Engineered Source Inc
Custom Low Hex Head Grade 5 Bolts & Related Products