... 18.2.1 ISO4014/4017 We are a large hex bolts and nuts manufacturer with capacity of over 250MT per day ... .Range size:(1) Hex Bolts Diameter : M6~M56(1/4~2'') Length : 500mm max.( ... .2.1,ISO4014/4017(2) Hex Socket Cap Screws (ALLEN BOLTS) Diameter : M6~M56(1/4~2'') Length : 500mm max.( ... ,DIN985/986/982,ANSI18.2.2,BS1083,ISO4032/4035 Bolts and Nuts,DIN934,DIN931,DIN934,DIN975