Product in high-resistance Duroplast allowing for high temperature resistance and durability.
Long-lasting and high-tech gloss.
Standard color is black.
Fastening, zinc-plated steel insert (except brass for ref. 2263 and 1088).
Optimum utilisation between –50° to 155° Celsius, Outstanding resistance to chemicals, oil as well as tough climatic conditions.

Ball knob with female insert
| D | d | B | C | A’ | Reference | |
| 20 | M5 | 18 | 12 | 10 | 2263 | 7 |
| 20 | M6 | 18 | 12 | 10 | 1088 | 7 |
| 25 | M6 | 23,2 | 13 | 12 | 1256 | 14 |
| 25 | M8 | 23,2 | 13 | 11 | 1332 | 15 |
| 32 | M6 | 29 | 18 | 13 | 18.040 | 20 |
| 32 | M8 | 29 | 18 | 16 | 18.041 | 25 |
| 35 | M10 | 32,8 | 17 | 14 | 1349 | 34 |
| 40 | M8 | 37,3 | 20 | 14 | 0457 | 45 |
| 40 | M10 | 37,3 | 20 | 22 | 1135 | 46 |
| 40 | M12 | 37,3 | 20 | 21 | 1350 | 48 |
| 45 | M10 | 42,6 | 20 | 22 | 1351 | 60 |
| 50 | M10 | 47,5 | 22 | 22 | 1275 | 78 |
| 50 | M12 | 47,5 | 22 | 21 | 1250 | 80 |