S&W K Frame M&P Victory Pre-10 K38 Square Butt Strain Screw - V60 NOS

Smith & Wesson Square Butt Strain Screw

Factory new strain screw for Smith & Wesson K Frame square butt revolvers. The strain screw adjusts mainspring tension and is critical for proper trigger function.

• Part Number: V60
• Models: M&P, Victory Model, Pre-10, K-38
• Frame: K Frame square butt
• Condition: New Old Stock
• Function: Mainspring tension adjustment
• Style: Square butt configuration

This genuine S&W strain screw allows proper adjustment of mainspring tension, affecting trigger pull weight and hammer fall. Essential for optimal revolver performance.