Description:
Knurled knobs.

Material:
- Black thermoplastic
- bush and screw grade 5.8 steel.

Version:
- Steel trivalent blue passivated.

Ordering Notes:
- Add the desired cap colour code where applicable
- black grey caps require no colour code.
- Form D = tapped bush without cap
- Form K = tapped bush with cap
- Form E = reamed bush without cap
- Form H = reamed bush with cap
- Form L = external thread.

Variant:
- Form K, tapped bush with cap
- cap colour Black Grey RAL 7021. Dimensions: D: M12
- D1: 63 mm
- D2: 22 mm
- H: 41 mm
- H1: 17 mm
- T: 18 mm.