Trailer Suspension Hardware
(4) Four 6-1/2" Square Axle U-Bolts 1/2" Diameter with Plates & Nuts
Complete square u-bolt kit for 2" x 3" boat trailer axles. Includes four 1/2" diameter square u-bolts, eight nuts, and two u-bolt plates for a full axle hardware replacement setup.
Part Number: UBK-2000-SQ-612 Fits 2" x 3" Axle Tubes
| Overview This kit is built for 2" x 3" tube axles found on many larger boat trailers. It includes the square u-bolts, matching nuts, and two u-bolt plates needed to secure the axle to the spring seat hardware. | At a Glance
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R&P Knowledge Hub
Axle size: This kit is intended for 2" x 3" tube axles.
Common use: Often used on many boat trailers with larger axle tubes.
Hardware layout: The kit supplies four square u-bolts, eight nuts, and two plates for a complete axle clamp hardware set.
Measurement note: The listed dimensions are the u-bolt inside measurements: 2" wide, 6-1/2" long, with 1/2" diameter rod.
R&P Repair Insight
Why sizing matters: Square u-bolt kits need to match the axle tube correctly. On this kit, the 2" inside width corresponds to a 2" wide tube, and the 6-1/2" inside length provides the longer leg needed for this axle style.
Before ordering: Confirm the axle tube size and compare your existing u-bolt dimensions before replacement so the hardware seats correctly with your plates and spring setup.
Features
| Complete Hardware Kit Includes four square u-bolts, eight 1/2" nuts, and two u-bolt plates. | Square Axle Fit Designed for 2" x 3" moat tube axles used on many larger boat trailers. |
| 1/2" Diameter Rod Built around 1/2" diameter square u-bolts for trailer suspension hardware replacement. | Longer Leg Profile 6-1/2" inside length provides the longer reach needed for this axle and plate combination. |
| Specifications | Included Components |
Verify axle dimensions and compare all hardware measurements before installation.
