Metric Flange Nuts

Metric Flange Nuts resemble and are frequently used with Flange Bolts. They share the same flange that flares to a diameter that's larger than the hex section and machine screw threads that are either coarse or fine; the bearing surface can be smooth or serrated. Use serrated to resist loosening. Steel strength grades include Class 8 and 10 with a plain or zinc plated finish. Stainless steel can also be supplied.

DIN 6923 Hex Flange Nut | Coarse / Fine Thread — Non-Serrated and Serrated
SIZE: M3 - M20+ | MATERIAL: Class 8, 10 Steel – A2, A4 Stainless Steel | FINISH: Plain, Zinc