Socket Hex Csk Screw, DIN 7991

• Material: High Strength Steel
• Type: Countersunk Head
• Groove: Socket Hexagon
• Connection: Common Bolt
• Head Style: Counter Sunk Bolt
• Standard: DIN
• Model NO.: DIN7991
• Grade: 8.8 &10.9&12.9
• Transport Package: in Small Box or Bulk in Carton
• Specification: raw material: Alloy steel 10B21
• Origin: China
• HS Code: 7318159001

Product Description

DIN7991 Socket Hex CSK Screw


Grade:  8.8, 10.9, 12.9

Size: M3-M16

 

Products Detailes
Raw material	1,Steel:C45(K1045), C46(K1046),C20
	2, Alloy steel: SCM435,10B21
Specification & gauge	M3-M16
Surface Finishing	Zn- Plated,Ni-plated, ,Chromate,Electro Painting,Black Anodize,Plain,Chrome plated,Hot Deep Galvanize(H. D. G. ) etc.
Heat Treatment	Tempering,Hardening,Spheroidizing,Stress Relieving.
Standard	ISO,GB,DIN,JIS,ANSI,BSW
Manufacture  Process	Heading/ /Threading/ /heat threatment plating/Anti-slipping/Baking/QA/Package/Shipping
Sample  Availablity	we can make sample within 7 days free of charge  if there i
Lead time	30-40 working days as usual,It will based on the detailed order quantity.
After sales service	we will follow up goods for every customer and help solve problem after sales.

Finish: Zinc/black/plain/Zinc+Cr3.