Slottex Plug 52.0 mm Metric Threads Yellow Nylon 6

Sealing Slottex Plugs (Type 3) with an inverted head style, have a double sealing ring on the underside of the flange that provides positive sealing. Head is designed not to trap liquid. Quick and easy to fit using a screwdriver, spanner, socket or allen key. Can be tightened manually or with a power tool.