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 grade 5 steel, 3/8"-16 x 1-1/2"

Non-serrated full thread grade 5 hex flange bolts

Full thread

A hexagonal head for use with a wrench. These bolts are sometimes called Frame bolts. Meets IFI-111 (2002).

  • Zinc plated grade 5 steel
Serrated full thread grade 5 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.

  • Zinc plated grade 5 steel

Matching Products

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Prod. # Description Buy
17672
Flange nuts, Zinc plated grade 5 steel, 3/8"-16
A nut with a built in washer.
Add
$0.19 / ea
$13.10 / 100
$113.00 / 1000
17632
Flange nuts serrated, Zinc plated grade 5 steel, 3/8"-16
A nut with a built in washer which is serrated to resist loosening.
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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.