The wide flange design keeps any paint flakes away from the hole when removed. The nylon material absorbs paint keeping paint flakes to a minimum. The nitrile gasket seals the plug to the mating surface for a watertight seal. Can be applied or removed by hand, screwdriver or with a torque wrench. Nylon is recommended for intermittent temperatures up to 230F (110C) to -40F (-40C).