Hammond HP Series Hole Plugs - Painted Steel Finish

Designed to seal unused push­button holes, conduit openings and knock­out holes against dust, oil, and water. Standard Pushbutton size is 30.5mm Steel Hole Plug Available in 12 sizes. Finished in gray. Oil-resistant gasket. Secured with a 10-24 x 0.55" threaded stud and plated wing nut. Stainless Steel Hole Plugs Available in 8 sizes. Finished in brushed natural 304 stainless steel finish. Oil-resistant gasket. Secured with a 10-24 x 0.55" threaded stud and plated wing nut.