Match the part number, measurements and connection points that apply to your trailer.
| Hub Face | Measure hub face to hub face. |
|---|---|
| Spring Center | Measure mounting centers and confirm perch configuration. |
| Capacity | Match the required axle rating. |
| Brakes | Confirm brake type and flange configuration. |
Heavy-duty drive-in wheel stud engineered for secure hub retention on heavy-duty trailer axles designed for Rockwell-style applications.
| Specification | Detail |
|---|---|
| Part Number / SKU | 4759-27 |
| Brand | R & P Carriages |
| Product Type | Drive-In Wheel Stud |
| Thread Size | 9/16"-18 RH |
| Overall Length | 2-5/8" (2.625") |
| Spline / Knurl Dia. | 0.615" |
| Head Diameter | 0.810" |
| Quantity Included | 1 Single Stud |
| Category | Details |
|---|---|
| System / Axle | Heavy-Duty Trailer Axle Hubs & Drums |
| Primary Fit | Rockwell-style hubs requiring 0.615" spline bore |
| Fitment Method | Measure thread size, length, spline diameter, and head size before ordering |
| Important Note | Verify hub bore and existing stud dimensions to ensure proper knurl engagement. |
| Feature | Buyer Benefit |
|---|---|
| 0.615" Spline Dia. | Provides precise press-fit engagement into hub bore to prevent spinning. |
| 9/16"-18 Fine Thread | Delivers high clamping force and reliable wheel retention under heavy loads. |
| 2-5/8" Length | Accommodates standard and thick-flange heavy-duty trailer wheels. |
| 0.810" Head Dia. | Ensures solid seating flush against the back of the hub flange. |
Important Fitment Note: Always measure existing wheel studs prior to purchasing. Confirm thread pitch (9/16"-18), overall length (2-5/8"), knurl diameter (0.615"), and head diameter (0.810") match your hub specifications. Application references are provided for guidance only.
Compatibility: Designed for heavy-duty trailer axle hubs accepting a 0.615" spline diameter drive-in stud. Verify before ordering.
Vehicle / System Fit: Applications matching Rockwell-style heavy trailer axles using 9/16"-18 wheel hardware.
Installation Notes: Drive or press straight into the hub flange to avoid galling or expanding the spline bore unnecessarily.
Performance Insight: Precise knurl sizing creates a tight mechanical lock, preventing the stud from turning inside the hub when lug nuts are torqued.
Built to withstand intense shear stress and high clamping loads on heavy trailer applications.
0.615" spline diameter ensures a tight press-fit hold that resists spinning during wheel removal and installation.
Cleanly cut, uniform threads provide smooth engagement with standard 9/16" trailer lug nuts.
0.810" head diameter distributes pressure evenly across the back of the hub shoulder for optimal stability.
| Quantity | Item |
|---|---|
| 1 | 9/16"-18 x 2-5/8" Drive-In Wheel Stud (Part # 4759-27) |
| Not Included | Wheel Lug Nuts (Sold Separately) |
Selected from R&P customer feedback for Trailer Axle / Running Gear products and related trailer service.
“Got me the axle I needed right away with custom spring perch setting.”
“Had a trailer made to my needs.ken was able to get it done and at a price that was very acceptable.i have bought parts there for 2 other trailers and always in stock”
“Quality work. Staff is polite. Great job welding a project for me. Didn't even want to charge me, so I bought them a case of Corona. They were ecstatic. I ever need a welding or like that R&P Carriages is #1 !!!!!”
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