M22 x 1.5 Stainless Steel Allen Key Plug with Copper Washer (SS316) | PLG-M22

M22 x 1.5 plug for sealing large-diameter weld bungs and drain ports on heavy industrial and marine equipment. The PLG-M22 is one of the larger metric plug sizes, used for high-capacity drain closures on industrial tanks, bulk fluid storage systems, heavy equipment sumps, and large marine vessels. The copper washer creates a metal-to-metal seal that holds under pressure without sealants. Pairs directly with our WB-M22 weld bung. SS316 for superior corrosion resistance.

M22 x 1.5 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.