XCKP21F2P16 isn’t available to order as a complete part Ss it’s an assembly of the three following parts, which you can order:
• ZCP21 contact body
• ZCEF2 M12 head with steel roller plunger
• ZCPEP16 cable gland entry.
In the XCKP or XCKD series, the ZCEH2 M18 head is available. The ZCEF2 head is shown in the XCMD catalogue pages of the manufacturer’s website.