Compatible Thread Standard - UNF Threaded Sealing Plug Compatible Thread Standard - UNF Compatible Thread Sizes - 1/2-20 Threaded

Threaded Sealing Plug includes five full threads for a secure fit and may be manually applied or removed with a screwdriver, socket or Allen key. Its head is designed not to trap liquids and protects 1/2-20 UNF Standard Threads .It withstands temperatures from -40°F - 320°F | -40°C - 160°C. Yellow made from Nylon.