Universal MATE-N-LOK flanged cap housings with twist and lock feature designed for use in household appliances where a bulkhead connector system is needed in conjunction with foam-in insulation. These Universal MATE-N-LOK flanged receptacle housings are made from UL94V-0 or UL 94V-2 rated nylon and mate with standard Universal MATE-N-LOK plug housings. Both Universal MATE-N-LOK pin and socket contacts can be used in these flanged cap housings. Universal MATE-N-LOK splashproof seals can also be purchased for additional sealing protection.