Types

• Type ST: Steel, standard spring load

• Type STS: Steel, high spring load

• Type NI: Stainless steel, standard spring load

• Type NIS: Stainless steel, high spring load

Version in Steel

Type ST / STS

• Housing

Steel, blackened

• Ball

Steel, hardened

Version in Stainless Steel

Type NI / NIS

• Housing

Stainless steel AISI 303

• Ball

Stainless steel AISI 420C, hardened

Identification of type STS / NIS:

Housing with 2 longitudinal markings