Weld Studs w/ 3 Projections (5/16"-18 x 1") - 10 pc (34691)
by Paulin
Also known as ring weld studs, these bottom projection studs are screws that form a tight seal to prevent the leakage of water, oil, gas, or other amorphous materials. The three projections provide a strong, durable weld joint. Also included in Hillman assortment #34686 / label #34685.