heavy hex nut 1. Delivery time:7days 2.OEM:manufacturer 3.ISO9001:2008,ROHS 4.MOQ: 300PCS heavy hex nut 1. Standard:DIN, ANSI, BSW, JSB ans ISO standard or non-standard as request&design.2. Material: Alloy steel,Carbon steel, stainless steel or as request3. Grade: Grade 4.8, Grade6.8, Grade8.8, Grade10.9,Grade12.9m,stainless steel , A2-70, A4-70, A4-804. Dimension: M4 or according requests.5. OEM ...