The Dayton 13-3131R is a heavy-duty, flattop hex wheel lug nut designed to match the fit and performance of original equipment hardware. Built from high-strength carbon steel with a protective yellow finish, this metric nut is engineered for the demanding environments of medium and heavy-duty commercial vehicles, ensuring a secure and stable wheel-to-hub connection.
Direct Replacement: Engineered to match the exact fit and function of factory hardware on specified Isuzu, Hino, and PACCAR vehicles.
Metric Precision: Features M30-1.50 fine threads, precision-machined for high-torque applications and reliable clamping force.
Durable Construction: Manufactured from rugged carbon steel to strict specifications, ensuring a long service life and resistance to stripping.
Corrosion Resistance: The yellow-tinted finish provides a durable layer of protection against road salt, moisture, and grime.
Industry Expertise: Backed by over 100 years of automotive experience and a US-based team of technical experts.
| Specification | Details |
| Part Number | 13-3131R |
| Thread Size | M30 x 1.50 (Fine) |
| Thread Direction | Clockwise (Right-Hand) |
| Hex Size | 41 mm |
| Seat Style | Conical |
| Design | Open End / Flattop Hex |
| Overall Length | 26 mm |
| Material | Carbon Steel |
| Color/Finish | Yellow |
| Weight | 0.30 lbs |
This wheel lug nut is a direct interchange for the following industry part numbers:
Isuzu: 1423330230
Hino: 900421112
PACCAR: W722
VMRS Code: 018-003-027
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