Hammond Manufacturing: Hole Plugs
Introducing Hammond Manufacturing’s hole plugs, designed to seal unused pushbutton holes, conduit openings and knockout holes against dust, oil and water, with a standard pushbutton size of 30.5mm and a mini pushbutton size of 22.5mm. These hole plugs come in two variations; steel and stainless steel. Steel hole plugs are available in 12 sizes, while the stainless steel are available in 8 sizes.