Sealcon: HM-16-BX Strain Relief Accessories, Hex Plug, for Hazardous Locations, Black Nylon, w/ Buna-N O-Ring, M16 x 1.5, 1.297.1601.50..
$2.73
Sealcon Part: HM-16-BX 1.297.1601.50 Hex Plug, for Hazardous Locations, Strain Relief Accessories, Black Nylon