I don't believe there is a schematic available for that individual model, and S&W no longer produces and disseminates drawings of their firearms as they have in the past. Numrich and Brownells both show schematics on their web sites , but they are not all model, or dash number specific.
If the one you ordered turns out not to be correct, (you will likely need a new windage nut as well) the best way to find the correct screw would be to contact S&W parts directly and check with them. Have your serial number ready for the Customer Service rep when you call. 1-800-331-0852
Numrich has the rear sight assembly, so they may also have the small screw and nut you need if you would rather call them.
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Ret. LE, FA Instr, S&W Armorer
Last edited by armorer951; 10-11-2020 at 06:33 PM.
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