Rockwell Style 9/16"-18 x 2-5/8" Drive-In Wheel Stud 0.615" Spline
Heavy-duty drive-in wheel stud engineered for secure hub retention on heavy-duty trailer axles designed for Rockwell-style applications.
Key Measurements & Specs
| 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 |
Fitment / Application
| 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. |
Top Features
| 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.
R&P Knowledge Hub
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.
Features
Heavy-Duty Alloy Steel Construction
Built to withstand intense shear stress and high clamping loads on heavy trailer applications.
Precision Machined Splines
0.615" spline diameter ensures a tight press-fit hold that resists spinning during wheel removal and installation.
Standard 9/16"-18 Fine Threads
Cleanly cut, uniform threads provide smooth engagement with standard 9/16" trailer lug nuts.
Broad Head Design
0.810" head diameter distributes pressure evenly across the back of the hub shoulder for optimal stability.
Included Components
| Quantity | Item |
|---|---|
| 1 | 9/16"-18 x 2-5/8" Drive-In Wheel Stud (Part # 4759-27) |
| Not Included | Wheel Lug Nuts (Sold Separately) |
