Royglastron
Seaman Apprentice
- Joined
- Apr 24, 2012
- Messages
- 43
Are you talking about the allen head screw in the water pick-ups ?? If you are that holds the pinion brg in the g/c in place. The fill screw is on the bottom of the l/u. The one in the last pic is the vent screw for filling the l/u. The fill screw looks the same.