Red Polyethylene Plastic Protective Plugs with BSP Threads 1/8" - 1" SP25000

SP25001 1/8" BSP 10.41mm 16.25mm. SP25002 1/4” BSP 13.21mm 18.41mm. SP25003 3/8" BSP 13.64mm 22.86mm. SP25004 1/2” BSP 17.40mm 24.45mm. SP25005 5/8" BSP 18.67mm 30.61mm.

eBay