Hand knob: Technopolymer plastic (Polyamide PA), matte black
Threaded stud: Stainless steel, molded-in, European standard 1.4567 (American
standard 316 series)
GN 6336.11 plastic hand knobs
with stainless steel studs have a spherical end whose diameter is smaller than the core diameter of the thread.
These components are an excellent choice for corrosion-free
Maximum heat resistance of plastic: 80°C (175°F).