Match the part number, measurements and connection points that apply to your trailer.
| Part Number | Match the number stamped on the original bearing or seal. |
|---|---|
| Dimensions | Measure the mating surfaces when a number is unavailable. |
| Hub / Axle | Use capacity as context, not as the only fitment check. |
Six-piece drive-in trailer wheel stud set for compatible Ranger / UFP-style hub applications where the stud measurements match. Built for trailer wheel service, hub repair, and replacement of worn or damaged press-in studs.
This 6-pack of drive-in wheel studs is a clean replacement option for compatible trailer hubs using a 1/2"-20 wheel stud with a 2" overall length and approximately 0.561" to 0.562" spline diameter. Commonly used in boat trailer service, these studs are intended for applications where the existing hub, stud hole, thread size, spline diameter, and stud length match.
Wheel studs are small parts, but they carry real clamp-load responsibility. A worn, stripped, spinning, or damaged stud should be matched carefully before replacement.
Compatibility: Designed for hub applications using 1/2"-20 drive-in studs with approximately 0.562" spline diameter and 2" overall length.
Vehicle / System Fit: Commonly found on boat trailers and compatible UFP-style trailer hubs where dimensions match.
Installation Notes: Confirm spline diameter, base diameter, spline length, thread size, and overall length before pressing into the hub.
Performance Insight: A drive-in stud depends on correct spline engagement; an undersized or oversized spline can cause poor retention or hub damage.
Selling Brand: R&P Carriages replacement wheel stud set.
Application Reference: Ranger and UFP names describe common compatibility and application style only where the listed dimensions match the customer’s hub.
What This Means: This listing is for a 6-piece replacement wheel stud set, not a guaranteed OEM-branded item unless specifically stated and verified.
Before Ordering: Verify thread size, stud length, spline diameter, spline length, base diameter, hub condition, and lug nut compatibility before installation.
When replacing trailer wheel studs, measuring the old stud is not optional. The thread may look right while the spline diameter or base profile is wrong.
Includes six drive-in wheel studs for trailer hub service and wheel-end repair.
Common trailer wheel stud thread size for matching compatible lug nuts and hub assemblies.
Designed for applications requiring a 2" long wheel stud with matching spline and base dimensions.
Commonly found on boat trailer hubs, including compatible Ranger / UFP-style applications where dimensions match.
| Specification | Detail |
|---|---|
| Part Number | 33038U-6 |
| Brand | R&P Carriages replacement wheel stud set |
| Product Type | Drive-in trailer wheel studs |
| Quantity | Set of 6 |
| Thread Size | 1/2"-20 |
| Overall Length | 2" |
| Spline Length | 0.25" |
| Base Diameter | 0.65" |
| Spline Diameter | 0.561" to 0.562" |
| Application | Common boat trailer hub applications |
| Fitment Reference | Compatible UFP-style hubs where measurements match |
| Category | Details |
|---|---|
| Vehicle / System | Trailer wheel hub / wheel-end hardware |
| Primary Fit | Boat trailer hubs using 1/2"-20 drive-in studs with matching spline dimensions |
| Secondary Fit | Commonly referenced for Ranger / UFP-style hub applications |
| Notes | Always match the removed stud by thread size, length, spline diameter, spline length, base diameter, and hub hole condition before installation. |
| Quantity | Item |
|---|---|
| 6 | Drive-in wheel studs, 1/2"-20 thread, 2" long |
| Not Included | Lug nuts, hub assembly, wheel, bearings, seals, or installation tools |
Selected from R&P customer feedback for Bearing / Seal products and related trailer service.
“I've ordered lots of trailer repair parts from them, always fast service, well packed, and the right parts. I highly recommend.”
“Would like to say thanks to everyone at R and P Carriages parts were delivered fast and with the very helpful staff, the right parts were sent the first time. Thanks Happy Holiday's.”
“Received swivel d-ring tie down 4 days after my wife ordered them , great price and came with backing plates. I received exactly what I paid for, thanks for the great service. Chris Davis , Mooresville NC”
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