Nylon Knockout Seals effectively plug electrical knock-outs. They are molded from 6/6 Nylon, in a gray color to resemble galvanized steel. They come in 6 trade sizes to fit 1/2" to 2" knock-out holes. (Notes: Locking fingers in fractional increments up to the maximum panel thickness.)
Request Information
Unit of Measure
Items
HEYCO® Nylon Hole Plugs for Knockout Sealing

HEYCO® 2.140 Inch (in) Head Diameter Nylon Hole Plug for Knockout Sealing
HEYCO® Nylon Hole Plugs for Knockout Sealing

HEYCO® 1.500 Inch (in) Head Diameter Nylon Hole Plug for Knockout Sealing
HEYCO® Nylon Hole Plugs for Knockout Sealing

HEYCO® 1.015 Inch (in) Head Diameter Nylon Hole Plug for Knockout Sealing
HEYCO® Nylon Hole Plugs for Knockout Sealing

HEYCO® 1.906 Inch (in) Head Diameter Nylon Hole Plug for Knockout Sealing
HEYCO® Nylon Hole Plugs for Knockout Sealing

HEYCO® 1.218 Inch (in) Head Diameter Nylon Hole Plug for Knockout Sealing
Description N/A Nylon Knockout Seals effectively plug electrical knock-outs. They are molded from 6/6 Nylon, in a gray color to resemble galvanized steel. They come in 6 trade sizes to fit 1/2" to 2" knock-out holes. (Notes: Locking fingers in fractional increments up to the maximum panel thickness.)
Approximate Head Thickness N/A 0.063 in
Head Diameter N/A 2.140 in54.40 mm N/A 1.500 in38.10 mm N/A 1.015 in25.80 mm N/A 1.906 in48.40 mm N/A 1.218 in31.00 mm
Mounting Hole Diameter N/A 2.000 in50.80 mm N/A 1.375 in34.90 mm N/A 0.875 in22.20 mm N/A 1.750 in44.50 mm N/A 1.093 in27.80 mm
Overall Height N/A 0.453 in11.50 mm
Maximum Panel Size N/A 0.125 in3.20 mm
Trade Size N/A 1-1/2 in N/A 1 in N/A 1/2 in N/A 1-1/4 in N/A 3/4 in
Material Temperature Index1 N/A 125 ºC
Material N/A Nylon 6/6
Color N/A Silver Gray
Flammability Rating N/A 94V-2
Industry Standards/Certifications N/A Recognized under the Component Program of Underwriters Laboratories File #E-15331Certified by the Canadian Standards Association File #LR-8919. CSA Approvals Pending.
Features and Benefits N/A
  • Installs quickly with fingertip pressure (no tool required)
  • Locks firmly in boxes up to 1/8" thick
  • Economical
  • 1 Maximum temperature on part not to exceed 105ºC.
Product Catalog