The Dayton Parts 13-1620L is a premium Grade 8 wheel lug stud, specifically engineered for heavy-duty commercial hubs. Forged from high-strength carbon steel, this serrated stud is designed to provide maximum clamping force and rotational resistance. It serves as a critical component for maintaining wheel-end safety in demanding vocational and long-haul applications.
Precision-manufactured for a secure, non-slip press-fit.
| Feature | Specification |
| Part Number | 13-1620L |
| Thread Size | 1 1/8-16 (Fine) |
| Thread Direction | Counterclockwise (Left) |
| Under Head Length | 3.25 in |
| Knurl Diameter | 1.247 in |
| Bolt Grade | Grade 8 |
| Material | Carbon Steel |
Thread Length: 1.66 in
Shoulder Length: 1.335 in
Shoulder Diameter: 1.22 in
Head Diameter: 1.5 in
Style: Serrated Stud (Round Shoulder)
Weight: 1.10 lbs
Durable Carbon Steel: Meets SAE automotive industry standards for hardness and tensile strength, preventing the stud from stretching or shearing under maximum load.
Corrosion Resistance: Features a black protective coating that has undergone extensive salt spray testing to ensure years of durability against road salt, moisture, and chemical exposure.
Safety Verified: Every stud is tensile tested through industry-standard proof-load testing to guarantee structural reliability and road safety.
U.S. Based Quality: Backed by a professional team of engineers and quality control specialists in the United States.
The 13-1620L is a direct replacement for several high-demand OEM and fleet part numbers:
| Brand / Source | Part Number | Notes |
| PACCAR | W365 | Direct Replacement |
| Meritor | R008996L | Wheel Stud |
| VMRS | 018-003-009 | System Reference |
| Other Ref | 018003009 |
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