Fasteners: 1)Hex nut: M2 to M64 2)Hex bolt: M6 to M48 3)Material: mild steel,35C,45C, ss304-316, brass 4)DIN934,ANSI B18 All kinds of fasteners:hex bolts and nutscarriage boltsthreaded rodseye boltswashersU-boltsflange nutsplate and so on. Custom Machining Part Fasteners at Good Value