Type E - with threaded blind bore.
Type C - with plain blind bore, Tol. H7
GN6336.2 Star Knob With Steel Bush
These star knobs provide a firm grip to easily achieve high torques whilst being comfortable to use. The face of the bush is exactly square to the bore and is in steel to prevent edge breakages. Cross-dowels can be used successfully.
Plastic, Technopolymer (Polyamid PA, reinforced, black, matt finish.
Bush - Steel, zinc plated, blue passivated.
also available with stainless steel bush.