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 Used in automotive applications, plumbing, and more, flange bolts feature a washer like flange beneath the bolt head that speeds production time and distributes the clamping load, offering protection to the mating surface.

Package details:
M6x12/16/20/25/30mm Hex Bolts ----- 6pcs per kind, in total 30pcs,
M8x16/20/25/30mm Hex Bolts ----- 5pcs per kind, in total 20pcs,
M6 Flat Washers ----- 30pcs,
M6 Spring Washers ----- 30pcs,
M6 Hex Nuts ----- 30pcs,
M6 Lock nuts----- 20pcs,
M8 Flat Washers ----- 20pcs,
M8 Spring Washers ----- 20pcs,
M8 Hex Nuts ----- 20pcs,
M8 Lock nuts----- 10pcs.