Aluminium alloy knobs with threaded blind hole.
knobs HOLK 5335 are a special development intended for the food and medical processing machinery industry. The smooth and enclosed areas as well as the large corner radii comply with the requirements of hygiene standards.
Stainless Steel-Star knobs with threaded bolt.
Stainless Steel 304
The original HOLKEN design with 5 recess grips is typical for HOLK 5334 star knobs.
This form gives these grips an appealing look and additionally allows a high torque to be achieved.
Knob drawn from Stainless Steel sheet