Product Name: Square Head Machine Bolt with Blue White Zinc Coating Customized M3 M4 M5 Finish: Blue-White Zinc Plated Application: Machinery, Chemical Industry, Environmental, Building Grade: 8.8 Standard: DIN, ANSI, GB, JIS Head Style: Square Connection: Common Bolt Type: Square Head Material: Carbon Steel Trademark: kinsom fasteners Transport Package: Standard Specification: M3 M6 M8 Product Description Customized square head machine thread bolt with blue white zinc coatingSpecification:square head with carbon steel /alloy steelNon standard boltCold forging /machining process for manufacturingSize : M3 M4 M6 M8Thread type: machine type Finish: blue white zinc coatingMarked: KS or by your needsIndustry: building construction,machineand othersSize and Material can be customized by your specific needs.What we can do:All the following details can be customized by your specific need.OEM service is welcomed.Product NameCustomized square head machine thread bolt with blue white zinc coatingMaterialStainless steel 304 `316 ,carton steel 45# 22A 10B21,alloy steel,aluminum5052 6063F22,brass ,Titanium/Ti Alloy And so onHardness4.8-12.9 gradeType of ShankFull thread/ parital threadDriversslotted,six-lobe,pozi driver,square,triangle,8 point,phillipsType of Headflat,oval,truss,PF.round ,button,pan(JIS,ANSI),fillister,squareSurface TreatmentZinc,nickel,gold brass,black/black oxide etcShank DiameterM2.5-M30 customized by your needOverall Length6-120MMSalt Spray Test24hr-1000hrHead Diameteraccording to the sizeApplicationThe product is used for fixing thing in one place,it is also apply to material transmission, large drill bit.Package Description25kg/carton;Can Pallet.Or according to customers' requests.If you are looking for the cold forging fasteners manufacturer,look no further than kinsom fasteners.Kinsom provide you high quality product and service with customized size,finish,detail requirements cold forging fasteners.If you are seeking no more than of cold formed items,even kinsom can supply you related precision metal parts withthe second processing to meet your demands.OEM service is available.Send your drawing to us,let's talk more details.Customized fasteners:Plain with oil /No finish What kind of finish you need ?Hexagon bolts :Sandblasting blacking or zinc , black nickel ,black finish series:Welcome to visit us:Professional inspection machine to insure the quality:Professional cold forging and threading machine to get the right fasteners: