M3 - 3MM WING NUTS BUTTERFLY NUTS ZINC TO FIT BOLTS SCREWS BZP GRD 4 DIN 315
M3 x M3 Wing Nuts Zinc Plated DIN 315. Wing Nuts consist of two large ‘wings’, which are designed to make it easy to install without the use of tools. Wing Nuts have a small head and large wings for the convenience of hand on hand installation.