{"product_id":"gm-ls1-ls2-ls3-header-bolts-m8-x-1-25mm-0-984-25mm-uhl-black-finish-12-pack","title":"GM LS1 LS2 LS3 Header Bolts M8 x 1.25mm, 0.984\" (25mm) UHL Black Finish 12 Pack","description":"\u003cdiv\u003e\n\u003ch2\u003eGM LS1\/LS2\/LS3 Header Bolts, M8 x 1.25mm — 12‑Point, 0.984\" (25mm) Under Head, Black Oxide, Pack of 12\u003c\/h2\u003e\n\u003cp\u003eUpgrade your GM LS exhaust header installation with purpose‑built bolts designed for aftermarket manifolds. These M8 x 1.25mm header bolts are engineered to replace shared factory bolts that may be damaged or incompatible with thicker headers, ensuring a secure, leak‑free seal on LS1\/LS2\/LS3 applications.\u003c\/p\u003e \u003cul\u003e \u003cli\u003eThread size: M8 x 1.25mm\u003c\/li\u003e \u003cli\u003eOverall length: 32mm\u003c\/li\u003e \u003cli\u003eUnder‑head length: 0.984\" (25mm)\u003c\/li\u003e \u003cli\u003eHead type: 12‑point, designed to suit a 10mm spanner\u003c\/li\u003e \u003cli\u003eMaterial: chrome moly 8740 for high strength\u003c\/li\u003e \u003cli\u003eFinish: black oxide for corrosion resistance and durability\u003c\/li\u003e \u003cli\u003eHead design: compact 12‑point head ideal for tight spaces on aftermarket header flanges\u003c\/li\u003e \u003cli\u003eFlange compatibility: suits 1\/4\" wide flange\u003c\/li\u003e \u003cli\u003ePack size: 12 bolts (set of 12)\u003c\/li\u003e \u003cli\u003eApplication: specifically for GM LS1\/LS2\/LS3 header installations\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhy choose these header bolts? When installing aftermarket exhaust headers, factory manifold bolts often won’t fit or may have become damaged. This set provides a high‑strength, corrosion‑resistant fastener designed to endure the vibrations and heat of LS engine applications, while the 12‑point head gives you maximum maneuverability in cramped engine bays.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"My Store","offers":[{"title":"Default Title","offer_id":47288140988586,"sku":"AF37-1012","price":66.8,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/7829\/4698\/files\/s-l1600_1_fbaa0af8-2b5d-4cf0-bded-cc1e50075644.webp?v=1754026479","url":"https:\/\/tgmperformance.com.au\/products\/gm-ls1-ls2-ls3-header-bolts-m8-x-1-25mm-0-984-25mm-uhl-black-finish-12-pack","provider":"TGM Performance Parts","version":"1.0","type":"link"}