Seal M16 x 1.5 threaded drain ports, weld bungs, and fabricated fittings with confidence. The PLG-M16 allen key plug uses a copper washer to create a leak-proof metal seal without thread tape or sealant. Used in heavy equipment drain ports, hydraulic systems, marine applications, and industrial tank closures. Slim round head design allows installation in tight spaces. Pairs directly with our WB-M16 weld bung. SS316 for long-term corrosion resistance.
M16 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.
