This knob is in polyamid filled with microscopic glass beads, allowing for high-impact resistance and durability. Standard color black.
Fastening, steel insert, strength class 5.8, locking pin hardened.
Optimum utilization between –50° and 130° Celsius, outstanding resistance to chemicals, oils as well as tough climatic conditions.
Product also available in stainless steel

Index plunger with locking nut
| D1 | D | D2 | L | L1 | L2 | H | SW1 | SW2 | Reference | |
| M10x1,0 | 5 | 21 | 47 | 17 | 7 | 5 | 13 | 17 | 8420 | 30 |
| M12x1,5 | 6 | 25 | 56 | 20 | 8 | 6 | 14 | 19 | 8421 | 45 |
| M16x1,5 | 8 | 33 | 74 | 26 | 10 | 8 | 19 | 24 | 8422 | 95 |
| M20x1,5 | 10 | 33 | 80 | 28 | 12 | 10 | 22 | 30 | 8423 | 165 |
| Spring force | ||||
| D1 | D2 | initial F1(approx. N) | final F2(approx. N) | Resistance to shearing |
| M10 | 21 | 5 | 12 | 1021N |
| M12 | 25 | 6 | 14 | 1470N |
| M16 | 33 | 15 | 35 | 2614N |
| M20 | 33 | 15 | 40 | 2810N |