1 Inch Flush Mount Black Plastic Body and Sheet Metal Hole Plug, Button Plugs with Flush-Type Heads for Plugging Holes in Automobile Bodies, Tanks, Refrigeration Units (8);

Heavy duty high grade thick black plastic finishing plugs, end cap for 4" outside diameter steel square tubing. These fit inside tube diameters from 3.53" to 3.67".... Heavy duty plastic plugs for square tubing are manufactured to provide a secure fit on multiple tube gauges. Quantity 1 = 2 plugs