Lugar de origem
Shanghai, China
Número do Modelo
Parafuso da flange do hex
Name
Carbon Steel M4 DIN 6921 12 Point Hex Flange Bolt
Surface treatment:
Plain,zinc plated,Black oxide, Nickel, Chrome, H.D.G , PTFE
material:
carbon steel,40Cr,Alloy Steel, Stainless Steel, Brass
Grade
SAE J429 Gr.2, 5,8; ASTM A307Gr.A, Class 4.8- 12.9