{"product_id":"8020-equivalent-3678-5-16-18-slide-in-stainless-t-nut","title":"80\/20 15 Series Slide-In Stainless T-Nut - 5\/16-18 (3678 Equivalent)","description":"\u003cp\u003e\u003cstrong\u003eStainless, 5\/16-18, slide-in. The single most-used fastener in any 15 series rack build — and the one people always underestimate.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA slide-in T-nut goes in from the open end of the extrusion and slides along the T-slot to where you need it. That makes it the strongest and cleanest option in the T-nut family, because the full nut body is captured inside the slot rather than being rolled or dropped in.\u003c\/p\u003e\n\u003cp\u003eIt also means you have to plan. Slide-in nuts have to be loaded before the extrusion end is capped or joined, so count the fasteners for every bracket on a member before you close it up. Stainless matters here because these live in the weather on a roof rack, and a rusted T-nut in a slot is a genuinely miserable thing to extract.\u003c\/p\u003e\n\u003ch2\u003eWhat it is for\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eMounting brackets, gear, solar panels, awnings and accessories to 15 series 80\/20 extrusion.\u003c\/li\u003e\n\u003cli\u003eAnywhere you need maximum holding strength from a T-slot connection.\u003c\/li\u003e\n\u003cli\u003eExterior and wet-environment use, where a plated steel nut would eventually rust into the slot.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eExtrusion\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e15 series 80\/20 and equivalent 1.5 in profiles\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eThread\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5\/16-18\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEquivalent to\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e80\/20 part 3678\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLoading\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSlide-in — enters from the open end of the extrusion\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp\u003eThe 15 series is the 1.5 inch profile — the size almost every van roof rack and interior framing system is built from. If your extrusion measures 1.5 in across the face and takes a 5\/16-18 fastener, this is your hardware.\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eStainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eThread\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5\/16-18\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSeries\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e15 series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSlide-in T-nut\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEquivalent part\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e80\/20 3678\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch2\u003eWhat's included\u003c\/h2\u003e\n\u003cul\u003e\u003cli\u003e(1) 5\/16-18 stainless slide-in T-nut for 15 series extrusion\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch2\u003eWorking with it\u003c\/h2\u003e\n\u003cp\u003eLoad them before you close the extrusion. Slide-in nuts enter from an open end, so once a member is capped, joined or bolted at both ends you cannot add more without taking it apart.\u003c\/p\u003e\n\u003cp\u003eOur habit on a rack build: count every bracket that will ever attach to a rail, add two, and slide that many in before the rail goes up.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLoad T-nuts before capping or joining the extrusion end.\u003c\/li\u003e\n\u003cli\u003eCount your brackets, add two spares per rail.\u003c\/li\u003e\n\u003cli\u003eAnti-seize on stainless-into-stainless threads prevents galling. Stainless fasteners gall more readily than plated steel.\u003c\/li\u003e\n\u003cli\u003eSnug, then check torque after the first few hundred miles of vibration.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eQuestions we get asked\u003c\/h2\u003e\n\u003ch3\u003eHow do I know if my extrusion is 15 series?\u003c\/h3\u003e\n\u003cp\u003eMeasure across the flat face of the profile. A 15 series extrusion is 1.5 in wide (or a multiple — 1.5 × 3.0, and so on) and the T-slot takes a 5\/16-18 fastener. If your rack came from Unaka, 80\/20 Inc., or most van rack makers in North America, it is 15 series.\u003c\/p\u003e\n\u003ch3\u003eHow many should I order?\u003c\/h3\u003e\n\u003cp\u003eCount your joints, then add 20%. Rack hardware is the cheapest thing in a build and the most annoying thing to run out of halfway through a Saturday. We have never once regretted having spare T-nuts in the drawer.\u003c\/p\u003e\n\u003ch3\u003eWhat is the difference between a slide-in and a roll-in T-nut?\u003c\/h3\u003e\n\u003cp\u003eA slide-in loads from the open end and slides along the slot — strongest, but requires planning. A roll-in or drop-in loads anywhere along the slot after assembly — more convenient, slightly less holding area. Use slide-in wherever you can plan ahead, and roll-in for the bracket you forgot.\u003c\/p\u003e\n\u003ch3\u003eWhy stainless rather than zinc-plated?\u003c\/h3\u003e\n\u003cp\u003eBecause it lives outside. Zinc plating on a roof rack in a salted winter climate will eventually surrender, and a corroded nut inside a T-slot cannot be persuaded out without destroying something.\u003c\/p\u003e\n\u003ch2\u003ePairs well with\u003c\/h2\u003e\n\u003cul\u003e\u003cli\u003e\u003ca href=\"\/collections\/van-life-parts\"\u003eVan roof rack, ladder and 80\/20 hardware\u003c\/a\u003e\u003c\/li\u003e\u003c\/ul\u003e\n\u003cp\u003eSold and shipped by Campervan Parts R Us, the parts counter of Noke Van Co. — a working van conversion shop in Roanoke, Virginia. If you are unsure whether this fits your van, email us the year, model and wheelbase and we will check it against a build sheet before you order.\u003c\/p\u003e","brand":"Unaka Gear Co.","offers":[{"title":"Default Title","offer_id":51849985622301,"sku":"3678","price":0.93,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0704\/5831\/0941\/files\/8020-equivalent-3678-5-16-18-slide-in-stainless-t-nut-3678-30602822451364.png?v=1780690576","url":"https:\/\/campervanpartsrus.com\/products\/8020-equivalent-3678-5-16-18-slide-in-stainless-t-nut","provider":"Noke Van Co","version":"1.0","type":"link"}