Wing Nut M20 x 2.5 Zinc Plated Gr.4 DIN 315
Wing Nut
Metric
Black / Self Color
Dia: M20
Pitch: 2.5
DIN: 315
A DIN 315 nut, commonly known as a wing nut or butterfly nut, is a specialized metric fastener featuring two large "wings" that allow it to be tightened and loosened by hand without the need for tools.