{"product_id":"4-40-sti-socket-head-cap-screw-pack-of-6","title":"4-40 STI Socket Head Cap Screw (SHCS)","description":"\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eSize = 4-40 x .450\" STI SHCS\u003c\/b\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eHead Diameter = .227\"\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eHead Length = .140\"\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eT10 Hexalobular Bit (Included)\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003ePreCoil Socket Head Cap Screws\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003eare purpose-built for\u003cspan\u003e \u003c\/span\u003e\u003ci\u003eSTI (Screw Thread Insert) tapped holes\u003c\/i\u003e\u003cspan\u003e \u003c\/span\u003e— the oversized internal threads you cut\u003cspan\u003e \u003c\/span\u003e\u003cb\u003ebefore installing a Heli-Coil\u003c\/b\u003e.\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003eInstead of running standard threads, only to later blow-out to STI sized, or even worse, installing Heli-coils to fixture a part, and then have to remove them before plating; PreCoil fasteners let you\u003cspan\u003e \u003c\/span\u003e\u003cb\u003efixture, clamp, and assemble\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003edirectly into STI-tapped holes with confidence.\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eOversized external threads. Tight tolerances. No guessing.\u003c\/b\u003e\u003cbr\u003ePerfect for test fits, fixture builds, and any application where pre-insert threading can be utilized.\u003c\/p\u003e","brand":"My Store","offers":[{"title":"Pack of 5","offer_id":46483584549108,"sku":"","price":35.0,"currency_code":"USD","in_stock":true},{"title":"Pack of 10","offer_id":46483584581876,"sku":"","price":60.0,"currency_code":"USD","in_stock":true},{"title":"Pack of 25","offer_id":46483584614644,"sku":"","price":122.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0756\/2133\/5284\/files\/ChatGPTImageJan6_2026_10_48_47AM_82793bda-2a66-49e0-a10b-79396534abe9.png?v=1767721900","url":"https:\/\/precoilfasteners.com\/products\/4-40-sti-socket-head-cap-screw-pack-of-6","provider":"Precoil Fasteners","version":"1.0","type":"link"}