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All jobs have quick turnaround times, and you need each minute that you can free up. With Prefab Turnlok Locking Devices, save over four minutes of time an labor with every single device. Each UL Listed unit is shipped pre-assembled with a 4” x 4” square steel box cover and pre-wired 12AWG stranded leads.


  • Arrives completely assembled, saving you time and money.
  • Pre-assembly reduces waste and increases productivity.
  • Compact, impact-resistant nylon face and body are ultrasonically welded together for unrivaled strength.
  • Face color coding by voltage facilitates locating and mating of proper devices.
  • One piece, high-grade brass contacts offer excellent conductivity and heat-rise resistance.
  • Clearly marked NEMA configuration, rating, and third-party listing on each unit's face.
  • Single-piece, solid brass mounting strap is free of easily loosened rivets found on other brands.
  • Side and external screw-pressure-plate back wire capability.
  • Accepts #14 - #10 AWG.

15 AMP NEMA L715                     20 AMP NEMA L720                     20 AMP NEMA L820