CNC Machined Part, Bolts, Screws manufacturer / supplier in China, offering OEM and Small Orders Ok, DIN 16903 Customized Hex Round Thread Open Insert Brass Knurled Nuts with Shoulder for Plastics Moulding, Small Orders Supported, DIN 466/NF E 27-459/Cns 4474 High Quality Knurled Through Hole Thumb Nuts Tighten with Collar, Support OEM and Small Orders, GB /T 12/ASME/ANSI B 18.5/BS 325/as /Nzs 1390 Stainless Steel Black Oxide Oval Head Square Neck Screws and so on.