{"product_id":"smith-wesson-model-686-l-frame-strain-screw-round-butt-357-magnum-6861","title":"Smith \u0026 Wesson Model 686 L Frame Strain Screw Round Butt .357 Magnum, Part# 6861","description":"\u003ch2\u003eSmith \u0026amp; Wesson Model 686 Strain Screw (Round Butt) – Part# 6861\u003c\/h2\u003e\u003cp\u003eThis is a genuine factory Smith \u0026amp; Wesson strain screw for the L Frame Model 686 revolver with a round butt frame. An old-style used part in serviceable condition — a reliable, cost-effective option for restoring or maintaining your 686.\u003c\/p\u003e\u003cp\u003eThe strain screw controls mainspring tension, directly affecting trigger pull weight. Replacing a worn or damaged strain screw restores consistent hammer fall and reliable ignition.\u003c\/p\u003e\u003ch3\u003ePart Details\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 6861\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Name:\u003c\/strong\u003e Strain Screw, Round Butt\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Stainless Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e Used, factory original (old style)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrame:\u003c\/strong\u003e L Frame\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eModel Compatibility\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eCaliber\u003c\/th\u003e\n\u003cth\u003eFrame\u003c\/th\u003e\n\u003cth\u003eButt Style\u003c\/th\u003e\n\u003cth\u003eCompatible\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel 686\u003c\/td\u003e\n\u003ctd\u003e.357 Magnum \/ .38 Special\u003c\/td\u003e\n\u003ctd\u003eL Frame\u003c\/td\u003e\n\u003ctd\u003eRound Butt\u003c\/td\u003e\n\u003ctd\u003e✅ Yes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel 686 Plus\u003c\/td\u003e\n\u003ctd\u003e.357 Magnum\u003c\/td\u003e\n\u003ctd\u003eL Frame\u003c\/td\u003e\n\u003ctd\u003eRound Butt\u003c\/td\u003e\n\u003ctd\u003e⚠️ Verify fitment\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel 586\u003c\/td\u003e\n\u003ctd\u003e.357 Magnum\u003c\/td\u003e\n\u003ctd\u003eL Frame\u003c\/td\u003e\n\u003ctd\u003eRound Butt\u003c\/td\u003e\n\u003ctd\u003e⚠️ Verify fitment\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel 686 Square Butt\u003c\/td\u003e\n\u003ctd\u003e.357 Magnum\u003c\/td\u003e\n\u003ctd\u003eL Frame\u003c\/td\u003e\n\u003ctd\u003eSquare Butt\u003c\/td\u003e\n\u003ctd\u003e❌ Different butt style\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel 19 \/ 66\u003c\/td\u003e\n\u003ctd\u003e.357 Magnum\u003c\/td\u003e\n\u003ctd\u003eK Frame\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003ctd\u003e❌ Different frame\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cem\u003eNote: Strain screws differ between round butt and square butt L Frame revolvers. Always confirm your frame configuration before ordering. Model numbers are stamped on the frame behind the yoke when the cylinder is swung out. Pre-1957 revolvers may not have a model number — contact us with your serial number for assistance.\u003c\/em\u003e\u003c\/p\u003e\u003ch3\u003eInstallation\u003c\/h3\u003e\u003cp\u003eStrain screw replacement is a straightforward armorer-level task but affects trigger function. If you are unfamiliar with revolver mainspring assemblies, we recommend installation by a qualified gunsmith.\u003c\/p\u003e\u003cp\u003eQuestions? Call or email us — we're happy to help confirm fitment for your specific revolver.\u003c\/p\u003e","brand":"Smith \u0026 Wesson","offers":[{"title":"Default Title","offer_id":40850839470138,"sku":"6861","price":6.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1423\/2020\/files\/s-l960_45_2398fb75-0c8f-45a4-b847-9b7ea947599a.webp?v=1744916447","url":"https:\/\/usagunsandgear.com\/products\/smith-wesson-model-686-l-frame-strain-screw-round-butt-357-magnum-6861","provider":"USA Guns And Gear","version":"1.0","type":"link"}