... B18.2.2 & JIS B1181 2)Size: M2 to M64, 1/4" to 3" 3)Mild steel, C1035 & C1045, 35K & 45K ... Feature of hex nuts:1) Standards of hex nuts: DIN934 & ANSI B18.2.2 & JIS ... B11812) Size: M2 to M64, 1/4" to 3"3) Material: Mild steel, C1035 & C1045, 35K ...