Stainless steel bolt manufacturer / supplier in China, offering Carbon Steel Hex Nut ANSI-B18.6.6 Inch Size Nylon Lock Insert Nut 1/4"3/8"7/16"2#1/2"9/16"8#, 8.8 Bolt, High-Strength DIN 933 Hex Bolt, Extended Hex Head Screw, High-Head Through Blind-Hole Knurled Nuts with Collar M2m2.5m3m4m5m6m8m10 Tightening Thumb Nuts GB806 and so on.