1/8” maximum steel thickness. Electrical hole plugs are made from UL approved Nylon 6/6, 94V-2. Sizes listed are actual (not trade sizes).

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1/8” maximum steel thickness. Electrical hole plugs are made from UL approved Nylon 6/6, 94V-2. Sizes listed are actual (not trade sizes).

  • Plastic Knockout Plugs - Snap-In - Our Plastic Knockout Plugs - Snap-In are low-cost and easy to use.
  • Plastic Knockout Plugs - Snap-In plugs electrical knockouts with finger tip pressure
  • Low cost and assure good appearance
  • Snap-In winged protrusion for Positive Lock
  • Less costly & safer than steel snap-in blanks