BDP - Brass drain plug with collar/flange - 1/8 to 1" BSPP male

Hexagonal headed brass drain plug with flanged collar - offered in the following thread sizes 1/8" BSP, 1/4" BSP, 3/8" BSP, 1/2" BSP, 5/8" BSP, 3/4" BSP and 1" BSP