Parts Required For S&W Factory Rear Sights
Windage screws must be broken anytime a standard sight blade is replaced; here are the replacements.
Big Book Catalog, Issue:68, Page:320
SPECS: Single Pak contains 1 windage adjustment screw w/nut, 2 detent plungers and 2 springs. Six Pak contains 6 windage adjustment screws w/nuts, 6 detent plungers and 6 springs.