Brass hexagon body with the same male BSP threads each end, 60 degree tapered ends for solder type fittings which are not supplied - if required please order separately. Offered in sizes 1/8" BSP, 1/4" BSP, 3/8" BSP and 1/2" BSP. -- 1/8" BSP threads - larger hexagonal section in centre - 14mm accross flats - to provide an increased surface area for a sealing washer, also large 6.2mm bore. 21mm long.