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Custom double thread bolt with blackening color grade 8.8 Custom double thread bolt with blackening color grade 8.8
Custom double thread bolt with blackening color grade 8.8 Custom double thread bolt with blackening color grade 8.8


Custom double thread bolt with blackening color grade 8.8

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Certificated as IATF16949:2016 and ISO9001:2015 system for Samhotak factory.Buy customized double thread bolt in China and Custom fastener manufacturer supply metal parts from Kinsom.M4 M5 M6 M8 M10 M12 size ,length to 5-1000MM,custom material and coating options.More auto parts from forging process products in automotive industry.
  • Kinsom fasteners


Kinsom Fastener group is a professional manufacturer and exporter OEM company, that specialized in fasteners manufacturing,heat treating,plating/finishing industry productions.With whole heart to serve growing demand for fastener solutions in markets for local and overseas market.

Kinsom serve both large and small OEM/ODM ! Furthermore,we offer customized design to meet your requirement. Over 20 years high experienced engineer Well known fasteners industry application in automotive,construction,agricultural machinery and equipment,bicycle,motorcycle etc.Whether you need design advice, help with choosing the right technology, or assistance in reviewing an existing design for cost efficiency and quality, We have the solutions for you.

Kinsom Fasteners are dedicated to helping your production run smoothly. Superior quality and excellent service are the keys to our success.

Our many years of expertise, unique manufacturing process, professional testing machine,and our commitment to complete Customer Satisfaction is your assurance of the finest craftsmanship and meticulous personal service - at factory to you prices that maximize savings.

We take pride in anticipating your needs, and in servicing them with short and medium-run custom fasteners that meet your toughest specification and your highest expectations.

1.According to customer's requirement  

2.Standard: JIS,DIN,ANSI,ISO,BS,GB,Non standard is availabe and depends on customer's requirements

3.Hardness/Heat treatment:    Class 4.8-12.9

4.Type of Shank:Full thread/ Parcial thread/No thread

5.Drivers :slotted,six-lobe,pozi driver,square,triangle,8 point,phillips

6.Type of Head:flat,oval,truss,PF.round ,button,pan(JIS,ANSI),fillister,square

7. Surface Treatment:Zinc,nickel,gold brass,black/black oxide etc

8.Shank Diameter:M1.2-M30 customized by your need

9.Overall Length: 6-120MM  customized1000MM

10.Salt Spray Test:24hr-1000hr

11.Testing equipment:Automatic Optic Inspector,Projecting Apparatus,Salt Spray Test,Hardness/Tensile Machine

12.Certification:SGS,RoHS,Material Certication,PPAP

13.Sample:Accepted,we will send samples for your approval

14.Package Description:Packing arranged in row accordingly into a corrugated Box, and then palletized, Or according to customers' requests.

15.Delivery Term:EXW,FOB,CIF,CNF

16.Lead Time:Samples10- 15workdays,Mass productions 15-20 workdays after payment received.

17.Payment Term;L/C, T/T, Paypal,Cash,Western Union

  • Certificated ISO9001-2015 and ITAF16949:2016 system ;ROHS,ELV and PPAPIII Level;

  • Strict production and inspection procedure:all fasteners go through 100% optical sorting machine test ;

  • OEM and ODM service are welcomed;

  • Continuous Quality Improvement;

  • Neutral and DIY style custom label and packaging;

  • Standard and custom fasteners ;

2021audited by SGS BV from Made In China02


Plain without coating
Black color
ptfe black
Grade 6
Heat threatment
hardened and tempered
  No.16 Wapuhe Road, Kunshan Development Zone, Kunshan City Suzhou Jiangsu China 215333
 E-mail us:       tina@ksfasteners.com
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More focus on producing the quality products,and providing customer service and ability to meet customer requirements.

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