M12 x 1.25 Stainless Steel Allen Key Plug with Copper Washer (SS316) | PLG-M12

Seal an M12 x 1.25 threaded port cleanly and securely. The PLG-M12 stainless steel allen key plug is designed to close off weld bungs, drain ports, and threaded holes in automotive, industrial, and marine applications. The included copper washer provides a leak-free metal-to-metal seal without thread sealant. Ideal for sealing M12 weld bungs (pairs directly with our WB-M12), engine drain ports, hydraulic test points, and fabricated tank fittings. SS316 construction for superior corrosion resistance.

M12 x 1.25 Stainless Steel 316 Slim Round Head Allen Key Slotted Plug with Copper Washer Stainless Steel 316 for corrosive environments, rigid and durable construction.

Building a weld bung installation? Complete the job with our matching stainless steel weld bungs — available in NPT, Metric, BSPP/G, and AN/JIC flare thread types. Browse our full WB series to find the right bung for your project.