{"product_id":"flat-bottom-u-bolt-3-1-4-x-5-8-x-10","title":"Flat Bottom U-Bolt, 3 1\/4 x 5\/8 x 10\"","description":"\u003ch3\u003eFlat Bottom U-Bolt — 3.25\" × 5\/8\" × 10\"\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eSquare U-bolt for 3.25\" axle tubes with 5\/8\" rod\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis square (flat-bottom) U-bolt fits 3.25\" diameter axle tubes and uses a 5\/8\" (.625\") rod for high clamping strength. Threads are rolled for durability with 5\" of thread length to accommodate plates and springs; trim excess after installation. Each U-bolt is Grade 8 and includes tall nuts and 1\/4\" thick washers for proper stack-up.\u003c\/p\u003e\n\u003cp\u003eUse with U-bolt plates designed for 5\/8\" hardware; plates with smaller holes may need to be drilled to 5\/8\" for clearance. Verify plate width and spring pack height during mock-up to ensure sufficient thread engagement past the nut. After final torque, re-check clamp load after initial miles or trail use.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003ePart Number: R2548\u003c\/li\u003e\n\u003cli\u003eAxle diameter: 3.25\"\u003c\/li\u003e\n\u003cli\u003eRod diameter: 5\/8\" (.625\")\u003c\/li\u003e\n\u003cli\u003eLeg length: 10\"\u003c\/li\u003e\n\u003cli\u003eThread length: 5\" (rolled threads)\u003c\/li\u003e\n\u003cli\u003eGrade 8 hardware\u003c\/li\u003e\n\u003cli\u003eIncludes tall nuts and 1\/4\" thick washers\u003c\/li\u003e\n\u003cli\u003eSquare\/flat-bottom profile\u003c\/li\u003e\n\u003cli\u003eSold individually\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eNote\u003c\/h4\u003e\n\u003cp\u003eEnsure plates accept 5\/8\" U-bolts and that threads extend fully through the tall nut after torque. Cutting excess thread is acceptable once clamp load is verified; re-torque after the first shakedown.\u003c\/p\u003e","brand":"RuffStuff Specialties","offers":[{"title":"Default Title","offer_id":53429645639953,"sku":"R2548-Kit-1","price":14.3,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0967\/9667\/2273\/files\/R2548-flat-bottom-u-bolt-3-1-4-x-5-8-x-10-inch-ruffstuff-specialties-1.webp?v=1776410922","url":"https:\/\/4x420-4-7.com\/products\/flat-bottom-u-bolt-3-1-4-x-5-8-x-10","provider":"4X420 Offroad","version":"1.0","type":"link"}