Zinc plated steel. Hex head. Used to plug petcock holes in fuel tanks that are not in use. Also used as drain plug for oil tanks etc.
Paughco, gas/oil tank plug 1/8″-27 NPT
€31.80
Fork slider drain plug: 49-E77 FL (NU) Crankcase drain plug: 77-20 XL Sportster; 08-12 (NU) XR1200 (2 used) Transmission: 01-16 Dyna; FLT/Touring Oil pump: 68-99 Big Twin Oil tank & transm.: 00-16 Softail Primary: 79-84 (NU) FLT; 82-84 (NU) FXR; 07-16 Softail; Dyna; FLT; 04-20 XL Sportster Fuel tank: Plugs holes not in use for petcock