star knob / threaded / polyamide
The underside of the knob GN 5337.4 is not recessed or hollowed. This means that if they are fitted with a Stainless Steel bushing they will meet the standards and requirements for hygiene applications.
The chrome plating lends the star knobs a metallic appearance. The surface is hard and smooth. Features making these star knobs particularly suitable for applications where high hygiene standards are required.
If exposed to aggressive media, the chrome layer of the star knobs has an advantageous effect. Test series reports on the chemical resistance are available.