Flange bolts, External hex, Steel, 11, 1-1/2"

Flange bolts

Flange bolts have a circular flange under the head that acts like a washer to distribute the load. Flange bolts that are non-serrated are sometimes called frame bolts.

See also

Flange bolts

Metric flange bolts

Flange bolts have a flange on the bottom of the head that distributes the load like a washer.