M10 Cable Penetrator for 8mm Cable


This cable penetrator makes a waterproof, high-pressure seal to pass the Fathom Tether or other thick cable into a watertight enclosure. Each set includes a bolt, nut, and O-ring. Some assembly required.

Delivery time: 10 - 14 business days

In stock

SKU: PENETRATOR-M-BOLT-8MM-10-25-R2-RP Category:


This cable penetrator is a simple solution to waterproofing your robot. It’s basically a bolt with a hole that the tether or other thick cable can be glued (potted) into to provide a waterproof, removable connection through watertight enclosures, boxes, panels, etc.

This particular penetrator has a extended length head and nut to make it easy to install and remove on an enclosure, even on densely packed end caps like the 4″ Series 18-Hole end cap. That’s perfect for a tether or other cables that you would like to install and remove frequently.

We primarily recommend the WetLink Thixotropic Potting Compound, which can be applied in one step and provides a depth rating up to 1000 meters. Alternatively, we recommend Loctite Marine Epoxy and the Potting Kit to complete assembly.


  • Extended length head and nut for easy installation/removal
  • Anodized aluminum construction for corrosion resistance and high strength
  • Captive O-ring face seal that works on any smooth surface
  • Wrench flats for easy tightening
  • Multiple inner diameters to secure the cable jacket but leave room for potting compound
  • Works for cables smaller than 8mm as well

Additional information

Weight 0,05 kg
Dimensions 2 × 1 × 1 cm