Tapered Plugs: Silicone, For 3.25 in to 4 in Hole, Rusty Red, 4 in Plug Dia at Top, Hollow, 2 PK

Tapered masking plugs seal plain or threaded holes during finishing or surface treatment processes such as painting, powder coating, galvanizing, anodizing, and plating. They insert into holes to keep them free from contamination during treatment processes. These flexible, cone-shaped plugs have top diameters that taper down to a smaller bottom diameter to accommodate multiple hole sizes, assist with insertion, and provide a tight fit into holes.