Hexagon flange bolts

Hexagon flange bolts

The head of a hexagonal flange bolt consists of two parts: the hexagonal head and the flange surface. The ratio of the bearing area to the stress area is greater than that of a normal hexagonal head bolt, so this bolt can withstand higher preload and has better loosening resistance, and is therefore widely used in automobile engines and heavy machinery.
 
The head of a hexagonal flange bolt consists of two parts: the hexagonal head and the flange surface. The ratio of the bearing area to the stress area is greater than that of a normal hexagonal head bolt, so this bolt can withstand higher preload and has better loosening resistance, and is therefore widely used in automobile engines and heavy machinery.

 
名称/Name 规格型号/Specifications 碳钢、合金钢机械性能
Carbon Steel、Alloy Steel Mechanical Performance
不锈钢机械性能
Stainless Steel Mechanical Performance
表面处理/Surface Finishing 材质/Material
Hexagon flange bolts M6 3.6 A1 Chrome Mild Steel
  M8 4.6 A2 Clean Zinc Mid Steel
  M10 4.8 A3 Yellow Zinc Alloy Steel
  M12 5.6 A4 Black Phosphide Nylon
  (M14) 5.8 A5 Dacromet ABS
  M16 6.8   Geomet Aluminium Alloy
  M18 8.8   Black Oxide SUS
  M20 9.8   Plain And Oil  
  M8*1 10.9   Nickel Plated  
  M10*1 12.9   E-coating  
  M10*1.25     Vacuum  
  M12*1.25        
  M12*1.5        
  (M14*1.5)        
  M16*1.5