Most Ram 1500 lug nuts use M14 x 1.5 threads with a 60-degree conical (acorn) seating and typically require a 22 mm (7/8 inch) socket. This is the common configuration for many factory wheels, but exact size can vary by year, trim, and aftermarket wheels, so always verify for your specific setup.
The Ram 1500 has evolved across generations, and wheel hardware can differ with different wheel designs and packages. While the core spec is generally M14 x 1.5 with a 60-degree seat, some wheels or packages may use slightly different socket sizes or seat types. The following guide outlines the standard specs and how to confirm the correct lug nut size for your vehicle.
Common lug nut specifications
Thread size and seat
For most Ram 1500 models with the common 5x139.7 mm bolt pattern, the lug nuts are:
- Thread size: M14 x 1.5
- Seat type: 60-degree conical (acorn) seat
- Typical hex size (socket you’ll need): 22 mm (7/8 inch) for OEM hardware; some wheels may use 21 mm or 13/16 inch sockets depending on year and wheel design
- Bolt pattern: 5x139.7 mm (5x5.5 inches)
In practice, many Ram 1500 owners will find the OEM lug nuts require a 22 mm socket, but variations exist. Always confirm with the specific wheel and nut combination on your vehicle to avoid damage or improper torque.
How to verify the lug nut size for your Ram 1500
Verification steps
Use these steps to confirm the exact lug nut size for your vehicle, especially if you’ve changed wheels or are using aftermarket hardware.
- Check your owner’s manual or the Ram/Chrysler tech sheet for the wheel hardware specification for your exact year and trim.
- Inspect the lug nuts on your wheels or remove one nut to measure the hex across flats with a calipers or a wrench to identify the socket size.
- Examine the nut’s seating type and ensure it matches your wheel hole and seat design (typically 60-degree conical for Ram OEM wheels).
- Count or confirm the bolt pattern (usually 5x139.7 mm on Ram 1500) to ensure you’re using the correct nuts for the hubs and wheels you have installed.
- If you’re using aftermarket wheels, consult the wheel manufacturer or dealer to identify the precise lug nut size and seat type required for that wheel setup.
Conclusion: While M14 x 1.5 with a 60-degree cone seat and a 22 mm hex size is the standard for many Ram 1500 configurations, always verify against your specific year, trim, and wheel combination to ensure proper seating and torque.
Summary
Across most Dodge Ram 1500 trucks, lug nuts are M14 x 1.5 with a 60-degree conical seat, commonly needing a 22 mm socket. Variations can occur due to year, trim, or aftermarket wheels, so always verify the exact size for your vehicle by checking the owner’s manual, the original lug nuts, or the wheel manufacturer, and follow the recommended torque specs when reinstalling.