Crankshaft Pulley Bolt

Typical Clients:  

Jeely automobile

Production Description:

product name: crankshaft pulley bolt
 
production information:
 
Specification :           M14×1.5×45
Surface treatment:   oiled after shot blasting
Property level:           ISO 898.1-10.9
material:            SCM435 JIS G4053-2003

production process: 
1. bolt can be made by cold-heading directly,
  
2. inner hole chamfer between the touch surface of washer and bolt 1.5×45°

3. head  R  structure can not be destroyed, shot blasting is adopted    to wipe off the surface oxide skin, release the surface stress, no hydrogen brittleness, product can achieve good performance.

4. Hydrogen cleaning technology is adopted to clean the product surface after oil-plating, cleanness can achieve advance world standard.