Brand:TGR, XDM, TD Brief: Surface:HDG, plain, black, galvanized, yellow zinc, nickel plated,dacromet, etc Material:stainless steel304,316,316L,317,317L,carbon steel,etc Size:M5-M16,1/4-3/4,Custom MOQ:10000
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.