Fine-thread UNF screw (10-32) with a length of 19 mm, specifically designed for use on SU carburetors of type H2 and H4. This screw is used at several important fastening points on the carburetor and is an essential spare part for restoration, maintenance, or returning the carburetor to its original condition.

Thread type: UNF (Unified National Fine)
Dimension: 10-32
Length: 3/4" (approx. 19 mm)
Application: SU H2/H4 carburetors