Types

• Type W: Steel, not hardened

• Type WNI: Stainless Steel, not hardened

• Type H: Steel, hardened

Type W

Steel

• Tensile strength class 5

• not hardened

• blackened

Type WNI

Stainless Steel AISI 303

• not hardened

Type H

Steel

• Tensile strength class 5

• hardened HRC 60 ± 2 (thread not hardened)

• Mating surface ground or fine turned