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Captive Washer Drain Plugs

Captive Washer Drain Plugs

Allen Socket Head Drain Plug with Captive Seals are used to plug parallel thread tapped holes.
These drain plugs have a FKM rubber gasket under the flange style head to secure the plug against the hole, preventing leakage. 
The seal is fitted into a radial recess at the bottom of the flange, and cannot be lost or squeezed out during installation. These plugs can be used multiple times.