Hexagon socket knurled thumb special screws
- This kind of screws with M8*15
- Surface treatment: Black plated
- 12.9 grade , applied in automobile and machine industry
- Material: SCM435
- Mark/logo on the head.
- All the size and finish information can be customized by you.
Key: Lustrate hydrogen after galvanizing to avoid hydrogen embrittlement.
Operation process:
- After surface finish treatment,put the screws into the equipment of oven.
- Using 200℃ high temperature , 8-24 hrs.
- All the details can follow our News.
Inspection :
- Choose 3-5MM iron sheet,make a hole of M8 size to fix the hexgaon socket knuled thumb screws,and also coupled with 3-5 pcs split washer and flat washer,connected with 12.9grade nuts.
- Fix with standard of torque .
- Put into the Refrigerated locker.
- After 24hrs,check the special screws.
Remark: Inspection quantities:50-100pcs
Competitive Advantages of Kinsom:
1.Experienced Staff
- We have more than 20 years experienced staff in special fasteners researching .developing and producing
2. Service.Factory Products
3.Top Quality / Green Product / Inspection+Test
- Each kind of material should be tested before producing.
- All the non standard fasteners should be gone through 3 rounds inspections before export out.
4.Guarantee/Warranty
we test 100% of our production lots to ensure absolute quality. Throughout every step of the manufacturing process we utilize in-process controls . Final inspections are then conducted in room to packaging.
IPQC Process
- Inspecitons of raw material
- Supplier Chain Management to ensure raw material products
- Not only focus on before inspections but also in process of productions.
OQC Process
we test 100% of our production lots to ensure absolute quality. Throughout every step of the manufacturing process we utilize in-process controls . Final inspections are then conducted in room to packaging.
- Each kind of material should be tested before producing.
- All the non standard fasteners should be gone through 3 rounds inspections before export out.



Offer PPAP /Mechanical Tests

Strong Packaging:
- Polybag
- Small box: L12*W8*H6CM
- Carton box: 28*20*16CM &23*22.5*15CM and customized by item size
- Pallet strong packaging
Carton box +pallet packaging to protect your goods in process of shipping
KINSOM special fasteners offer a high level technology support and service to customers through our experienced staff along with after sale service,efficient correspondence, superior quality, reliable delivery performance,and competitive pricing.To make sure "Fast, Higher and Correct".
Wanna know more about special fasteners,Visit us now .
Contact UsSales Dept: Tina
Shanghai Kinsom Precision Hardware Co.,Ltd
Libang Road Shunyang Industrial Zone Huaqiao Kunshan,China
Tel: 86-512-5527 0346
Fax: 86-512-5527 0346
MP: 86-15026951685
Email: tina@kinsomhardware.com
Skype: tinacheung131
MSN: tinazhung131@hotmail.com
www.kinsomhardware.com