CLASSIC MINI FRONT BRAKE CALIPER 3/8 UNF THREAD BLEED NIPPLE 3H2428 BE10

Classic Mini Bleed Nipple 3/8 UNF 

Part number : 3H2428

Front caliper bleed nipple , suitable for 8.4″ and 7.5″ brake calipers. Also used for front wheel cylinders on twin leading shoe type drum brakes. This is where you have two wheel cylinders per hub opposed to the early single leading type which only had one per hub.