2pcs Iron Galvanized Hex Socket Metric Male Thread Plug End Cap M10 - M30 Flange Inner Hexagon Hydraulic Groove Sealing(M17x1.5)

2pcs Iron Galvanized Hex Socket Metric Male Thread Plug End Cap M10 - M30 Flange Inner Hexagon Hydraulic Groove Sealing Color: Gold / Black Instruction: The sealing ring provides a tight sealing performance, easy to install, countersunk hex head increases leverage, used with a wrench. These threaded male plugs are used to seal holes in machinery, fittings, or pipes to prevent leakage of air, steam, gas, water, oil and fluids under pressure. These plugs are also great for plugging in intake manifold water ports, water pump ports, engine plug holes, and more.