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.

Flange bolts, Zinc plated steel, 5/8"-11 x 1-3/4"

Serrated full thread hex flange bolts

Full thread, Serrated

A hexagonal head for use with a wrench. Meets IFI-111 (2002). Serrated heads are designed to prevent loosening.

Matching Products

Click on a product # for additional info

Prod. # Description Buy
Flange nuts serrated, Zinc plated steel, 5/8"-11
A nut with a built in washer which is serrated to resist loosening.
$0.35 each
$7.48 / 25
$63.40 / 250

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.