Product Name: Hex Socket Machine Screws Certification: RoHS Shape of Head: Hexagon Material: Carbon Steel Trademark: Chunri Transport Package: Carton Specification: 4*12~5*50 Origin: China HS Code: 7318151001 Product Description Product name screwSize as below, ,customized as ypur requested.Surface treatment Zinc- Plated , Nickel-plated,Tin-plated ,Passivated , Sandblast and Anodize,Chromate, Polish , Black Oxide , Dacromet,Hot Deep Galvanize(H.D. G. )etc.Grade Steel carbon steelStandard ISO,BS,ANSI, GB,DIN,JIS,NonstandardAdvantage OEM / ODM / customized service provided;We are factory, we could make the size per your requirment.Quality control ISO standard.Certificate : SGS, ROHSPayment term TT 30% deposit in advance, 70% Balance Before ship.Item nameSpecsPrice Range(US$)Hex Socket machine screws5x500.02~0.35x606.3x406.3x507x407x507x607x70