English 1/4" Thread Oil Port Cap Oiler
1/4" threaded in type bottom bracket oiler cap. Standard British thread and features a a spring loaded flip top.
These are a direct replacements for ones used on vintage Raleigh, BSA, Rudge & Humber bicycles from 1920-60's.
Please contact us if you want to double check the measurements of these caps so, you can be assured they will fit your frame to avoid disappointment.