Product Name: DIN603 Round Head Square Neck Carriage Bolts Model NO.: bolt Finish: Hot-Working Application: Machinery Grade: 4.8 Standard: DIN Head Style: Round Connection: Common Bolt Type: Round Head Material: Carbon Steel HS Code: 731815 Trademark: DAZHE Transport Package: Small Box/Carton/Pallet, Carton/Pallet Specification: Size: M3-M36, Length: 6-150mm Origin: China HS Code: 7318150000 Product Description JiaxingDazheFastenerCo.,Ltd.isaprofessionalfastenersupplierinChina,locatedinJiaxing,oneofthebiggestfastenercityinChina.Possessingourownfactoryourmainproductsarescrews,stamping parts.basedonourexcellentquality,competitivepriceandpersonalizedservice,wehavebeenthesupplierofsome world-classfastenergroups,andgotourcustomerssupportandtrust.Welcometovisitourfactory,weexpectabrightfuturewithyouresteemcompany.StandardANSIB18.6. 4/JISB1122-96MaterialCarbon steel ,SS304, SS316,SS201DiameterM3~M36Head shapesRound HeadScrew threadCoarse threadScrew tipCone pointFinishA2-70/A2-80/A4-70/A4-80Paakagebased on customer requirement, usually small box/carton/pallet, carton/palletFeaturesGood anti-corrosion abilityGradeA2, A4CertificationISO9001: 2008, SGS, RoHSOEM service is also available