Stepped stud for Aston Martin DB2 & DB 2/4 using Vokes air filters. Brazed to back plate with 5/16-22 threads to hold filter to carburetor and 10-32 thread to retain filter cover.
Large thread: .951 long, 5/16-22 thread
Small thread: 1/2 long, 10-32 thread
OAL: 4 3/16
Length non threaded section: 2 47/64
DIA non threaded section: .192