Type E - with threaded blind bore.
Type D - with threaded through bore.
Type C - with plain blind bore, Tol. H7.
GN5345 Three Lobe Star Knob, Stainless Steel.
These star knobs have three lobes, which gives a good grip and allows relatively high torques to be easily achieved. They are ergonomically designed to prevent fatigue to the operator. Being made of stainless steel and with a smooth, sealed surface, they are ideal for use in clean room environments where hygiene is a priority.
Stainless Steel AISI 303, matt blasted.