IP04X 1/2″ NPT Industrial GoldPlug Magnetic Drain Plug External Head

1/2″ National Pipe Thread Stainless Steel Magnetic Drain Plug. Pulls metal particles from your oil.

1/2″ NPT actually measures 0.83″ in diameter.

9/16″ Square Head

1/2″-14 NPT Threads, 9/16″ External Square, 1.10″ OAL