M18 x 1.5 plug for sealing weld bungs, drain ports, and threaded openings on heavy machinery and marine equipment. The PLG-M18 stainless steel plug with copper washer delivers a reliable, leak-free seal in hydraulic systems, agricultural equipment, industrial tanks, and marine applications. The slim allen key head allows installation where standard hex plugs won't fit. Pairs directly with our WB-M18 weld bung. SS316 for superior corrosion resistance.
M18 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.
