Fasteners 1)Material:Un-finite 2)Size:Un-finite 3)Finishing:ZW,ZB,ZY,Nickel, ZP.else 4)Tolerance:0.001mm Fasteners1. Products Detailes: 1NameScrew,bolts.nuts2MaterialIron,carbon steel,brass,aluminum,stainless steel3Diameter rangeM3-M16 mm ,the length within 150mm4Head diametre rangethe largest is 35mm5Surface treatmentZinc,Nickle,Passivated,Tin-plated,Sandblast &Anodize,Chromate,6Heat ...