Wing Nut with Lobes

DIN 315 wing nuts with two protruding round lobes allow the fastener to be tightened and removed without additional tools. They are used in frequently disassembled structures subject to minimal loads.

They are equivalent to fasteners made to the Russian standard GOST 3032. There are two types: with round lobes (the German standard DIN 315 nut) and rectangular lobes (the American-type part). Larger parts have holes made in the lobes for quick tightening and loosening.

Wing nuts with two lobes are cast, forged or stamped. Depending on the production method, the fasteners are made from malleable cast iron, carbon or austenitic steel grade A2 and A4, plastic, brass, or coated steel (electroplated zinc or nickel plating).

The thread of a wing nut can be fine or coarse pitch, with a diameter from M3 to M24. Part height: 9.5–36.5 millimeters. The property class depends on the material the fastener is made from. The most common nuts have a property class of 5-8.

FLOK supplies the DIN 315 wing nut.