5/16"-24 UNF ZINC /8/ Hexagon flange nuts without serration DIN 6923
Firma Killich s.r.o. It offers collar nuts (plain, toothed) according to DIN 6923. In the assortment of collar nuts (plain, toothed) DIN 6923, the nuts are steel, galvanized, stainless steel A2. In the strength of 8.8, 10.9.