BRASS SUMP PLUG MALE THREAD 7/16"UNF-1/4"BSP FEMALE THREAD ADAPTOR SENSOR GAUGE

Brass Sump Plug Adapter Male 7/16"x20 UNF to 1/4"x19 BSP Female Thread for Sensor/Gauge. This high-qualityBrass sump plug adapter is designed to convert a7/16"x20 UNF male thread to an 1/4"x19 BSP female thread, making it ideal for connecting sensors, gauges, or other fittings.

eBay