Material: Black duroplastic PF 31.
Bush in galvanized steel.
Surface finish: Deburred and high-polish finish.
Note: Assembly Form L: The ball knobs are mounted firmly by tapping a hammer lightly. Please only use a rubber or plastic hammer, with a weight up to 200 g!
The version K0159.21604 has a bush in copper-plated steel.
The versions K0159.23008, K0159.23508 and K0159.24008 have a bush in brass.
On request: These versions are available from stock in dark red at extra charge.
Shank tolerance: Ball knobs with clamping sleeves can be mounted on standard rods with tolerance h9. The clamping sleeve supplied assures a firm and reliable fit.