Conlok 20mm U box.

• Manufactured from galvanised steel.
• Reduced labor,quick-fit Conlok system removes the need for re-threading conduit.
• Locks in place with zinc plated grub screw.
• Suitable for use with 20mm galvanised conduit.
• M4 thread fixing holes at 50mm centres.
• Lid sold separately.
• Conforms to the same British Standard as traditional threaded conduit systems, BS EN 61386-21:2004.