Maximize the stability of your wheel-end assembly with the Dayton Parts 13-2401R. Unlike standard single-sided studs, this Double Ended Stud is designed for specific heavy-duty hub and drum configurations that require dual-sided fastening.
Forged from high-strength carbon steel and heat-treated to Grade 8 standards, this stud is engineered to withstand extreme rotational torque and heavy payloads, making it a critical component for specialized commercial vehicle applications.
| Feature | Specification |
| Part Number | 13-2401R |
| Primary Thread Size | 1 1/8-16 (Fine) |
| Secondary Thread Size | 7/8-14 (Fine) |
| Thread Direction | Clockwise (Right) |
| Knurl Diameter | 1.00 in |
| Bolt Grade | Grade 8 |
| Weight | 0.88 lbs |
Primary Thread Length: 1.65 in
Secondary Thread Length: 1.25 in
Shoulder Length: 0.75 in
Shoulder Diameter: 0.975 in
Shoulder Shape: Round
Material: Carbon Steel (Black Finish)
Durable Carbon Steel: Meets SAE automotive industry standards for hardness and tensile strength, ensuring the stud does not stretch or shear under heavy vocational use.
Corrosion Protection: Finished in black with extensive salt spray testing to ensure years of resistance against rust, road salt, and harsh environmental factors.
Rigorous Testing: Every stud is tensile tested and undergoes industry-standard proof-load testing to verify structural integrity and road safety.
U.S. Based Engineering: Backed by a professional team of engineers and quality control specialists to ensure a precise, trustworthy fit.
The 13-2401R is a direct replacement for several high-demand OEM and aftermarket part numbers:
| Brand / Manufacturer | Part Number | Notes |
| Meritor | R005921R / R005922R | Double Ended Stud |
| Meritor | 20X1242 / 20X1868 | Double Ended Stud |
| Chevrolet / GM | 678210 | OEM Replacement |
| IHC (International) | 549808C1 | OEM Replacement |
| Spicer | 501290R / 501291R | Double Ended Stud |
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