Forming
Bending
Upsetting
Machining
Welding
Raw materials
Carbon steel or alloy steel
Stainless steel
Heat treatment
Tempering, quenching
Mechanical properties
Class 4.8 to 8.8
Thread locker
Surface protections
Shot blasting
Browning
Phosphatising
Painting
Rilsan coating
Electrolytic zinc plating, hydrogen de-embrittlement process
Zinc flake plating
Cataphoresis
Hot dip galvanizing
Chromium plating
