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SHANGHAI KINSOM PRECISION HARDWARE CO.,LTD

Kinsom is a professional Fasteners manufacturer and exporter company

SHANGHAI KINSOM PRECISION HARDWARE CO.,LTD is a professional manufacturer and exporter, specialized in standard and custom cold formed fasteners, including weld bolts and nuts, rivets series, stainless steel screws, double thread bolts, pins and hooks etc. With whole fastening solutions, we provide "One Stop Purchasing" for non-standard precision metal parts, machining and stamping parts to serve growing demand in local and overseas markets.

Kinsom Group (Kunshan Samhotak Factory) has over 30+ years experienced staff in fasteners industry, serving automotive, machine, electronics, household and construction industries, with IATF 16949 and ISO 9001 certified.
  • 99.9%
    On-Time 
    Delivery
  • 5%-15%
    Save Cost 
    For You
  • 100PPM
    Defect Rate
If we don't have it listed ,just ask and we will solve your problems!

Main Products

Custom Projects OEM &ODM
We h ave an excellent technical team, which can be designed according to customers requirements.
How you can Trust US

Kinsom was audited by SGS BV from Made In China Samhotak Verified ITAF16949:2016 system,reach SGS,ELV,Rohs 2.0,IMDS,PPAP III level

Best-equipped Team Members

We have the best-equipped Team Members in the business to help you get the right part and find the best answers to all your questions.

Large and Small OEM/ODM

Kinsom serve both large and small OEM/ODM! Furthermore,we offer customized design to meet your requirement.

Focus on Producing Quality Products

To face the challenges of world manufacturing market ,we still make sure our quality and service to maintain satisfaction of customers.

"Your Drawing, Our Engineering. One Less Thing to Worry About"
FASTENING SOLUTIONS-APPLICATION

News Center

We provide 7*24 Hours Service and reasonable Price
How to Verify Our IATF 16949 Certification — A Step-by-Step Guide for Automotive Customers

How You Can Trust Us ?Kinsom Fasteners specializes in automotive standard and custom non-standard fasteners.Our factory holds both ISO 9001 and IATF 16949 certifications.Below is a Verification guide for our IATF 16949 certificate. IATF 16949 Certificate Verification Guide Company Name: Kunshan Samh

Related inpection and manufacturing standard on Fasteners Bolts,screws and studs

Now we update some test items for the bolts ,screws and studs.with the test standard.Kinsom test will follow all this when we control in house or in the third party ,SGS,CTI or required by clients,Kinsom can take control those following items in house:

GB∕T 3098.13-1996 Mechanical properties of fasteners-Torsional test and Minimum torques for Bolts Screws

Kinsom fasteners standard share on GB∕T 3098.13-1996 Mechanical properties of fasteners-Torsional test and Minimum torques for Bolts Screws with nominal diameters 1MM to 10MM from Grade8.8-12.9,more details about the how to test the torques in process of fasteners before shipping out.Kinsom follow the inspection rules and system ISO 9001:2015 certificate.Our weld bolt meet your specific demands.

Mastering PPAP in the Automotive Industry,How Kinsom Delivers Excellence

Mastering PPAP in the Automotive Industry: Requirements, Challenges, and How Kinsom Delivers Excellence The Production Part Approval Process (PPAP) is a critical framework in the automotive industry, ensuring that components and systems meet stringent quality, reliability, and safety standards befor

Precision Straightness Control in Fasteners: How We Meet Your Custom Requirements & Save Costs

Precision Straightness Control in Fasteners: How We Meet Your Custom Requirements & Save Costs 1. Defining Straightness: Why It MattersStraightness is a critical geometric tolerance (per ISO 1101、ISO2768、GB1804-2000、UNI-EN-22768-mK、GB1184etc) Partner With a Straightness Expert Kinsom Fasteners

Strengthening Its Position in Custom Non-Standard Fasteners/Adds 85S 5-Station Cold Heading machine Kinsom Fasteners

Kinsom Fasteners Expands Custom Non-Standard Capabilities with New 85S 5-Station Cold Header As demand for high-end custom non-standard fasteners surges across new energy, automation, construction machinery, and rail transit, Kinsom Fasteners continues to strengthen its position through strategic equipment upgrades and full-chain manufacturing control. In June 2026, the company commissioned a new Zhejiang Dongrui 85S 5-station cold header—a move that fills the gap for high-complexity parts and elevates process capability, capacity, and product diversity. This addition complements an existing fleet of 2-die 4-blow, 3-die 6-blow, 4-die 4-blow, and 5-die 5-blow machines, enabling full-spectrum coverage from simple components to intricate specialty geometries.

Factory news under Covid-19 epidemic in April Month

Situations of Covid-19 epidemic in Shanghai is not so good till now.We are sorry to advise that, as notified by adminstration of Huaqiao International Service Business Park .Due to the Covid-19 and in order to do a comprehensive job in prevention and control,there will be a temporary lock down in Huaqiao from April 6th to April 19th. All the workers are not allowed to enter into the factory and stay home for working,following by the epidemic prevention policy from the each village.Please get prepared and noted that. We deeply apologize for the inconveniences.

Update new tensile strength and proof loading machine for Screw Bolt and nut

Samhotak update new universal tensile testing machine to test bolt and nut,tensile strength and proof loading. Kinsom can take control those following items in house: Go/no go plug gauge test (all test tools are calibrated by professional third party every year) Dimension Proof load test Torsional...

  No.16 Wapuhe Road, Kunshan Development Zone, Kunshan City Suzhou Jiangsu China 215333
 E-mail us:       tina @ksfasteners.com
 Call us on:
         +86-512-57889792 International Line
         +86-512-55270346 Domestic Line
 
More focus on producing the quality products,and providing customer service and ability to meet customer requirements.

News

  • How You Can Trust Us ?Kinsom Fasteners specializes in automotive standard and custom non-standard fasteners.Our factory holds both ISO 9001 and IATF 16949 certifications.Below is a Verification guide for our IATF 16949 certificate. IATF 16949 Certificate Verification Guide Company Name: Kunshan Samh
  • Now we update some test items for the bolts ,screws and studs.with the test standard.Kinsom test will follow all this when we control in house or in the third party ,SGS,CTI or required by clients,Kinsom can take control those following items in house:
  • Kinsom fasteners standard share on GB∕T 3098.13-1996 Mechanical properties of fasteners-Torsional test and Minimum torques for Bolts Screws with nominal diameters 1MM to 10MM from Grade8.8-12.9,more details about the how to test the torques in process of fasteners before shipping out.Kinsom follow the inspection rules and system ISO 9001:2015 certificate.Our weld bolt meet your specific demands.
  • Mastering PPAP in the Automotive Industry: Requirements, Challenges, and How Kinsom Delivers Excellence The Production Part Approval Process (PPAP) is a critical framework in the automotive industry, ensuring that components and systems meet stringent quality, reliability, and safety standards befor
  • Precision Straightness Control in Fasteners: How We Meet Your Custom Requirements & Save Costs 1. Defining Straightness: Why It MattersStraightness is a critical geometric tolerance (per ISO 1101、ISO2768、GB1804-2000、UNI-EN-22768-mK、GB1184etc) Partner With a Straightness Expert Kinsom Fasteners
  • Kinsom Fasteners Expands Custom Non-Standard Capabilities with New 85S 5-Station Cold Header

    As demand for high-end custom non-standard fasteners surges across new energy, automation, construction machinery, and rail transit, Kinsom Fasteners continues to strengthen its position through strategic equipment upgrades and full-chain manufacturing control.

    In June 2026, the company commissioned a new Zhejiang Dongrui 85S 5-station cold header—a move that fills the gap for high-complexity parts and elevates process capability, capacity, and product diversity. This addition complements an existing fleet of 2-die 4-blow, 3-die 6-blow, 4-die 4-blow, and 5-die 5-blow machines, enabling full-spectrum coverage from simple components to intricate specialty geometries.

News Letter

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