What size are Ford Super Duty lug nuts?
Most Ford Super Duty trucks use 9/16-18 lug nuts with a 60-degree conical seat on eight-lug wheels. This applies to many recent F-250, F-350, and F-450 configurations, but variations can occur depending on wheel type, aftermarket replacements, and model year. Always verify the exact size for your specific vehicle before purchasing replacements.
Key facts about lug nut sizing on Super Duties
Understanding the typical specs helps ensure you get the right hardware for your wheels. The following details cover what you’re most likely to encounter on modern Ford Super Duty trucks.
- Number of lug nuts per wheel: 8 (eight-lug wheels are standard on most Super Duties).
- Thread size: commonly 9/16 inch in diameter with 18 threads per inch (9/16-18).
- Seat type: typically a 60-degree conical (often referred to as an acorn-style seat).
- Bolts/pattern: eight-lug wheels on a pattern around 8x170 mm (center-to-center spacing), used on many modern Super Duties; some older or specialized wheels may vary.
- Applicability: these specs cover standard factory wheels and many aftermarket wheels designed for Super Duty trucks; variations exist with different wheel designs or aftermarket setups.
Note: If you have aftermarket wheels or a special edition, the lug nut size or seat may differ. Always confirm with the wheel manufacturer or Ford parts for your exact build.
Common lug nut specifications you are likely to encounter
- Thread diameter: 9/16 in (approximately 14.3 mm)
- Thread pitch: 18 threads per inch (18 TPI)
- Seat style: 60-degree conical (standard for many Ford wheels)
- Number of lug nuts per wheel: 8
These specifications reflect the typical configuration found on most current Ford Super Duty models. If your wheels are aftermarket or if you’re uncertain, verify against the wheel documentation or contact a dealer or shop.
How to verify the exact lug nut size for your vehicle
To ensure you source the correct lug nuts for your specific Super Duty, use these steps to confirm the exact size and type:
- Check the owner’s manual, dealer parts catalog, or Ford’s official service information for your exact model year and wheel type.
- Inspect the existing lug nuts: measure the thread diameter with calipers or a thread gauge and determine the pitch (coarse 18 TPI is common for 9/16-18).
- Identify the seat type on the lug nut and wheel: most factory wheels use a 60-degree conical seat; replacement nuts should match this seat.
- Confirm the wheel bolt pattern and lug arrangement: standard Super Duty wheels are eight-lug; if in doubt, measure the distance between lug holes or consult the wheel manufacturer.
- When replacing or purchasing, opt for OEM-approved lug nuts or those specified by the wheel manufacturer to avoid fitment or safety issues.
If you’re unsure after these steps, contact a Ford dealer parts counter or a qualified tire/wheel shop with your VIN, wheel type, and any part numbers you’ve found.
Summary
For most current Ford Super Duty pickups (F-250, F-350, F-450), lug nuts are typically 9/16-18 with a 60-degree conical seat on eight-lug wheels. Variations exist with aftermarket wheels and older hardware, so always verify the exact size and seat type for your specific vehicle and wheel combination. Rely on OEM parts or wheel manufacturer guidance to ensure proper fit and safety.
What size are the lug nuts on a 2017 Ford Super Duty?
14 mm x 1.50 thread size, 7/8" hex.
What size socket is a F250 lug nut?
The lug nut socket size for a Ford F-250 is typically a 21mm or 13/16-inch socket, for models with M14x1.5 thread pitch. Some older models or specific aftermarket wheels may use a 7/8-inch socket, so it is best to confirm with your vehicle's specifications before starting any work.
- For most modern F-250s: Use a 21mm or 13/16-inch socket.
- For older models or certain aftermarket wheels: A 7/8-inch socket may be necessary.
- Confirmation: Double-check your specific vehicle's manual or lug nut specs to ensure you have the correct size before attempting removal or installation.
What size are the lug nuts on a 2019 Ford Super Duty?
14 mm x 1.50 thread size, 3/4" hex.
What size are super duty lug nuts?
14mm x 1.5
The factory lug nut size for the Ford F250 is 14mm x 1.5 thread pitch. This measurement refers to the diameter of the lug nut (14mm) and the distance between the threads (1.5 thread pitch). It's essential to use the correct size lug nuts to ensure a proper fit and secure attachment to the wheel studs.
