{"product_id":"rexka-5-16-18-sems-bolts-u-nuts-kit-10-sets-black-phosphate-captive-washer-for-trim","title":"Rexka 5\/16-18 Sems Bolts \u0026 U-Nuts Kit — 10 Sets Black Phosphate, Captive Washer for Trim","description":"\u003cp\u003e\u003cstrong\u003eRexka 10 Sets 5\/16 Bolts \u0026amp; U Nuts is a ready-to-install hardware kit containing ten 5\/16-18 sems body bolts and ten 5\/16-18 U-nuts in black phosphate designed for trim, fender, radiator, intake and general automotive fastening.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis compact kit brings together commonly used 5\/16\" body bolts and matching U-nuts so you can replace stripped fasteners or finish a restoration without searching for individual pieces. The black phosphate finish resists corrosion and reduces galling while the sems-design bolts include captive washers to speed installation. These parts are compatible with many GM, Ford, Chrysler, Dodge and other domestic models for interior, exterior and under-hood applications.\u003c\/p\u003e\n\n\u003ch3\u003eWhat exactly is included in this Rexka kit?\u003c\/h3\u003e\n\u003cp\u003eThe kit contains 10 indented hex head sems body bolts and 10 compatible U-nuts. Each bolt is 5\/16-18 x 7\/8\" with a captive washer and black phosphate coating; each U-nut is sized for 5\/16-18 threads and also black phosphate finished.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e10 x 5\/16-18 indented hex sems bolts, 7\/8\" length, washer O.D. 3\/4\"\u003c\/li\u003e\n  \u003cli\u003e10 x 5\/16-18 U-nuts, black phosphate\u003c\/li\u003e\n  \u003cli\u003eHex size for bolts: 1\/2\"\u003c\/li\u003e\n  \u003cli\u003eIntended for bodywork, trim, radiator and interior\/exterior panels\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow will these bolts and U-nuts perform on my vehicle?\u003c\/h3\u003e\n\u003cp\u003eThese parts are designed for general-purpose body fastening rather than high-stress structural uses. The black phosphate finish offers moderate corrosion protection and smoother assembly, and the captive washer on the sems bolts prevents washer loss during installation.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eGood for trim panels, fender liners, air intake covers and radiator shrouds\u003c\/li\u003e\n  \u003cli\u003eCaptive washer simplifies alignment and reduces assembly time\u003c\/li\u003e\n  \u003cli\u003eBlack phosphate reduces surface friction and improves longevity versus raw steel\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhich makes and locations on a vehicle are they suited for?\u003c\/h3\u003e\n\u003cp\u003eThese 5\/16 fasteners match many common attachment points on American-made cars and trucks. They fit a broad range of GM, Ford, Chrysler and Dodge applications where 5\/16-18 threads are specified, such as pickups, SUVs and sedans for both interior and exterior trim tasks.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompatible with GM, Ford, Chrysler, Dodge body panels and accessories\u003c\/li\u003e\n  \u003cli\u003eUseful for radiator mounts, pickup bed hardware and intake bracketry\u003c\/li\u003e\n  \u003cli\u003eAlso handy for DIY projects and general repairs around the garage\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow should I install and care for these fasteners?\u003c\/h3\u003e\n\u003cp\u003eInstall the U-nut onto the sheet-metal flange, align the part to be fastened, and drive the sems bolt through until the captive washer seats. Avoid over-torquing; these are intended for panel retention rather than structural joints. Keep spare bolts dry and store in original packaging to limit surface oxidation.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHand-start bolts to avoid cross-threading, then tighten with a 1\/2\" wrench\u003c\/li\u003e\n  \u003cli\u003eDo not exceed typical panel fastener torque—check vehicle manual if unsure\u003c\/li\u003e\n  \u003cli\u003eReplace damaged U-nuts to ensure secure fit; reuse bolts if undamaged\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? If you restore or repair domestic vehicles, maintain a fleet, or handle regular DIY automotive projects, this Rexka kit provides common-size hardware so you can replace lost or damaged fasteners quickly. It’s particularly useful for body shops, mechanics, pickup owners and hobbyists who need a small but versatile supply of 5\/16\" sems bolts and matching U-nuts for trim, radiator, intake and general attachment points.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Are these bolts and U-nuts compatible with my GM or Ford vehicle?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes—these are standard 5\/16-18 sems bolts and matching U-nuts commonly used on many GM, Ford, Chrysler and Dodge body panels.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I reuse the U-nuts after removal?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: You can reuse U-nuts if they are not bent or stretched; replace any that show deformation for a secure fit.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Rexka","offers":[{"title":"Default Title","offer_id":55164015214935,"sku":"B0D7CRSW3S","price":31.74,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1050\/1524\/7191\/files\/rexka-front-packaging-5-16-bolts-u-nuts.jpg?v=1790348839","url":"https:\/\/britishgarage.co.uk\/products\/rexka-5-16-18-sems-bolts-u-nuts-kit-10-sets-black-phosphate-captive-washer-for-trim","provider":"British Garage","version":"1.0","type":"link"}