Smith & Wesson L Frame Model 686-5 .357 Magnum Strain Screw Round Butt - Part# 686172E

Smith & Wesson L Frame Strain Screw – Round Butt

Keep your Smith & Wesson L Frame revolver running smoothly with this genuine OEM strain screw. This new-style replacement part maintains proper mainspring tension for reliable hammer fall and consistent trigger pull — critical for both duty use and range performance.

Compatible Models

• S&W Model 686-5 (.357 Magnum / .38 Special)
• S&W Model 686-6 (.357 Magnum / .38 Special)
• S&W Model 586 (.357 Magnum)
• S&W Model 681 (.357 Magnum)
• Other S&W L Frame Round Butt Revolvers (new style)

Part Details

• Part Number: 686172E
• Frame Size: L Frame
• Style: New Style, Round Butt
• Caliber: .357 Magnum / .38 Special
• Condition: Used – Good

Sourced from genuine Smith & Wesson revolvers. Inspect your existing strain screw for wear or damage and replace with this OEM part for factory-spec performance.