Stimpson offers Electrical Knockout Plugs in six basic sizes: 1/2”, 3/4”, 1”, 1-1/4”, 1-1/2”, and 2”.

Variations for special situations are also available.

Electric-Knockout-Hole-Plug-Stimpson

Electrical Knockout Hole Plugs Dimensions

Part NumberElectrical KnockoutHead DimensionsLength Overall
(Size)(Diameter)(Height)
D36831/21-5/641/1623/64
D55831/21-5/641/1623/64
D37203/41-1/41/165/16
D383311-1/25/6411/32
D57241.1121-1/41/1621/64
D39161-1/41-13/161/165/16
D41341-1/41-13/161/165/16
D39241-1/22-7/325/6423/64
D445522-11/165/643/8
D449022-11/165/643/8