Hardened, for clamping modules size 20.
Order no. 554939: zero point pull-stud, order no. 554940: timing pull-stud,
order no. 554941: undersize pull-stud, order no. 303172: protection pull-stud
The timing pull-stud has an additional alignment bore, which can optionally be used for simple installation.
Protection pull-stud made of plastic.