| BE-12-18 | Bushing |
| SP-12-P1 | Spring guide PLASTIC 12-100 N |
| SP-12-2 | Spring guide 12-100 N |
| BE-16-25 | Bushing |
| SP-16-P1 | Spring guide PLASTIC 16-100 N |
| SP-16-6 | Spring guide 16-200 N |
| SP-16-7 | Spring guide 16-300 N |
Assembly tools are also available. For example, SP-AT-16 is used for the D=16 springs.
| Code | STEP |
| BE-12-18 |  |
| BE-16-25 | |
| SP-12-n | |
| SP-16-n | |
