{"product_id":"smith-wesson-k-frame-strain-screw-square-butt-05064b000","title":"Smith \u0026 Wesson K Frame Strain Screw - Square Butt - Factory OEM 05064B000","description":"\u003cp\u003eThis listing is for the strain screw only.\u003c\/p\u003e\u003cp\u003eGenuine Smith \u0026amp; Wesson factory OEM strain screw for K Frame revolvers with square butt grips. The strain screw is a critical internal component that secures the mainspring in the grip frame, directly affecting trigger pull weight and reliability. Reducing the number of turns increases trigger pull; adding turns lightens it — a common tuning technique for K Frame revolvers.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003ePart Number: 05064B000\u003c\/li\u003e\n\u003cli\u003eFrame: K Frame\u003c\/li\u003e\n\u003cli\u003eGrip Style: Square Butt\u003c\/li\u003e\n\u003cli\u003eFinish: Blue Steel\u003c\/li\u003e\n\u003cli\u003eCondition: Factory New OEM\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eModel Compatibility:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eFits all Smith \u0026amp; Wesson K Frame square butt models, including but not limited to:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eModel 10 (.38 Special)\u003c\/li\u003e\n\u003cli\u003eModel 13 (.357 Magnum)\u003c\/li\u003e\n\u003cli\u003eModel 14 (.38 Special)\u003c\/li\u003e\n\u003cli\u003eModel 15 (.38 Special)\u003c\/li\u003e\n\u003cli\u003eModel 17 (.22 LR)\u003c\/li\u003e\n\u003cli\u003eModel 18 (.22 LR)\u003c\/li\u003e\n\u003cli\u003eModel 19 (.357 Magnum)\u003c\/li\u003e\n\u003cli\u003eModel 48 (.22 WMR)\u003c\/li\u003e\n\u003cli\u003eModel 64 (.38 Special)\u003c\/li\u003e\n\u003cli\u003eModel 65 (.357 Magnum)\u003c\/li\u003e\n\u003cli\u003eModel 66 (.357 Magnum)\u003c\/li\u003e\n\u003cli\u003eModel 67 (.38 Special)\u003c\/li\u003e\n\u003cli\u003eModel 617 (.22 LR)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eNote: Not compatible with K Frame round butt models. If you are unsure whether your revolver has a square or round butt grip frame, check the grip frame shape at the bottom — square butt frames have a flat, squared-off base.\u003c\/em\u003e\u003c\/p\u003e\u003cp\u003eWe specialize in new, used, and new old stock Smith \u0026amp; Wesson double action revolver parts. Questions about compatibility? Shoot us an email or give us a call — we're happy to help.\u003c\/p\u003e","brand":"Smith \u0026 Wesson","offers":[{"title":"Default Title","offer_id":40685808844858,"sku":"05064B000","price":6.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1423\/2020\/files\/DSC03218.jpg?v=1728914005","url":"https:\/\/usagunsandgear.com\/products\/smith-wesson-k-frame-strain-screw-square-butt-05064b000","provider":"USA Guns And Gear","version":"1.0","type":"link"}