Silicone Flangeless Masking Plugs
Harman's line of Silicone Flangeless Masking Plugs is specifically designed to mask threaded holes, including the top thread, without masking the surrounding area. The tapered ribs and hollow core allow for many different size holes to be masked, regardless of the thread pitch. Will withstand 315 Celsius / 600 Fahrenheit.
Application: Protects Threaded Holes (Including The Top Thread) Without Masking The Surrounding Area