S&W Model 28 Highway Patrolman .357 Magnum Strain Screw Square Butt Black 28173E

Factory original (OEM) Smith & Wesson Model 28 Highway Patrolman strain screw for square butt N-frame revolvers. Finished in black, this old-style replacement part ensures proper tension on the mainspring for reliable ignition and optimal hammer performance. • Manufacturer: Smith & Wesson • Part Number: 28173E • Fitment: S&W Model 28 Highway Patrolman (.357 Magnum, N-Frame, Square Butt) • Condition: Factory Original / Used OEM Part • Finish: Black 2. Compatibility & Model Check Primary Model: S&W Model 28 / Model 28-1 / Model 28-2 "Highway Patrolman" (.357 Magnum, N-Frame, Square Butt) Cross-Compatibility Note: This strain screw typically fits other vintage S&W N-Frame square butt revolvers of the same era (such as Model 27, 29, 57, 24, and 25 using old-style strain screws).