Smith & Wesson K Frame Model 65 Strain Screw Round Butt .265" Spur .357 Magnum Old Style Used - 65172

Smith & Wesson K Frame Model 65 Strain Screw — Used OEM Part

Genuine Smith & Wesson factory strain screw for the K Frame Model 65 revolver, chambered in .357 Magnum. Round butt configuration, .265" spur, old style. Stainless steel construction. Removed from a used firearm and in good working condition. A direct OEM replacement for a worn, damaged, or missing strain screw.

The strain screw secures the mainspring (hammer spring) to the grip frame and directly influences trigger pull weight. Tightening increases spring tension for more reliable ignition; backing it out slightly can reduce trigger pull for target or competition use.

Part Details

• Part Number: 65172
• Condition: Used OEM
• Frame: K Frame
• Compatible Model: Model 65 (.357 Magnum)
• Grip Frame: Round Butt
• Spur: .265"
• Style: Old Style
• Material: Stainless Steel

Compatibility Note

This is the old style strain screw for round butt K Frame Model 65 revolvers. Verify your grip frame configuration before ordering — round butt and square butt strain screws differ. To find your model number, swing out the cylinder and check the frame behind the yoke.

Installation

Strain screw replacement is straightforward but disassembly of the grip is required. Installation by a qualified gunsmith is recommended.

Questions? Call or email us — we carry new, used, and new old stock S&W parts for the full K Frame lineup.