Carbon Steel hex nut 1.Delivery time: 45days 2.OEM: manufacturer ... . Standard: DIN, ANSI B18.2.1and ISO standard. 2. Material: Carbon steel.3. Grade of hex nut: Grade 4.8, Grade6 ... days or based on your quantity.2) Dimensions Product Name:Carbon Steel Hex NutSpeicifications:M3-M48; 1/4''-1-1/2 ... ''Material:Carbon steel, Q195, 35KNut Grade:Class4.8, 6.8, 8.8 ...