nuts 1.Material: low carbon steel 2.size: 3/8' - 1" ... S 8 , S10, S181 ANSI B18.2.2 FOR UNC HEX NUTS : FINISHED :1)PLAIN2)ZINC PLATED CR+3/CR+6 3 ... standard hex nuts for many years, including standards of ISO, DIN, ANSI, BS, UNI, JIS, AS, GB, etc. Our main products are DIN934 ... , DIN555, DIN6915, DIN6923, JIS B 1181, ISO4032, ISO 4034, A563, A453M, A194 ...