Correct Diameter Ring of 1 & 1/16 in. and Thickness of 11/64 in. for Winchesters.

Correct Stud threads of ¼ - 30 TPI for Pre-64 Winchesters

The complete saddle ring and stud fit (screw) directly into any (pre 64) 1894, 1886, 1873 Winchester saddle ring carbine. This can be used on the Winchester 1895 but you will have to shorten the screw in shaft slightly. 

NOTE: the screw in type saddle ring was not installed from the factory on the model 1873 or 1892.