{"product_id":"nut-hex-193108","title":"Nut - Hex for Series 1 5\/16th UNF – RTC3629","description":"\u003cp\u003eRTC3629 is a 5\/16th UNF hexagon nut used in the exhaust system of Land Rover Series vehicles. These nuts secure exhaust manifold flanges, downpipe joints, and related connections where high-temperature cycling causes fasteners to corrode, seize, or strip over time. Using the correct thread specification is essential to ensure a gas-tight joint and prevent exhaust leaks at manifold or pipe connections.\u003c\/p\u003e\n\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e5\/16th UNF (Unified National Fine) thread form - finer pitch than UNC, providing improved clamping retention in exhaust applications\u003c\/li\u003e\n\u003cli\u003eHexagon head profile for standard spanner or socket installation\u003c\/li\u003e\n\u003cli\u003eMatches original Land Rover exhaust fastener specification for Series 1, 2, 2A, and 3 models\u003c\/li\u003e\n\u003cli\u003eExhaust fasteners should be inspected whenever the exhaust system is disturbed; consider replacing in sets to ensure uniform clamping across all joints\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eVehicle Fitment\u003c\/h4\u003e\n\u003cp\u003eFits Land Rover Series 1, Series 2, Series 2A, and Series 3 vehicles across all variants equipped with 5\/16th UNF exhaust system fasteners.\u003c\/p\u003e\n\u003cp\u003eNot sure about fitment? Feel free to get in touch at \u003ca href=\"mailto:info@thomasperformance.co.uk\"\u003einfo@thomasperformance.co.uk\u003c\/a\u003e\u003c\/p\u003e","brand":"Allmakes PR2","offers":[{"title":"Default Title","offer_id":55821754597720,"sku":"RTC3629","price":1.31,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0890\/0070\/6392\/files\/RTC3629-600x600.jpg?v=1758871261","url":"https:\/\/thomasperformance.co.uk\/products\/nut-hex-193108","provider":"Thomas Performance Ltd","version":"1.0","type":"link"}