Adaptall Series 9028 carbon steel countersunk sealed plug. Adaptall specializes in the conversion of hydraulic adapters and fittings, between international ("metric") and American ("Imperial") thread types. These include British (BSPP, & bspt), JIS, kobelco, komatsu, and metric on the international side, as well as JIC, NPT, orfs, and SAE orb for Imperial thread types. Industries served include construction, mining/aggregates, pulp & paper, agriculture, manufacturing, industrial, marine, aerospace, military, OEM and more.