What size are the lug nuts on a Ford Bronco Sport?
The lug nuts used on most Ford Bronco Sport models are M14 x 1.5 with a 21 mm hex head, fitted to the factory 5x108 mm wheel pattern. This sizing covers the common configurations for recent model years, though variations can occur with aftermarket wheels or different trims.
Understanding the exact lug nut size for your Bronco Sport is important for safe wheel removal, rotation, and replacement. If your wheels or tires differ from stock, confirming the correct hardware before installation helps prevent cross-threading or seating issues.
Key lug nut specs for the Bronco Sport
The following details summarize the typical factory configuration and what to verify when sourcing replacements:
- Thread size: M14 x 1.5
- Hex size (socket): 21 mm
- Wheel bolt pattern: 5 × 108 mm
Notes: Always confirm your specific vehicle’s lug nut size using official documentation or by inspecting the wheel labeling and owner’s manual.
Variations with aftermarket wheels
Some aftermarket wheels or trim levels may use different lug nut sizes, seat types, or torque requirements. If you’ve changed wheels, verify the correct lug nut specification for your setup with the wheel manufacturer or a Ford dealer.
With the exact lug nut size confirmed, use the proper torque and seating to ensure safe operation.
How to verify on your vehicle
To confirm the exact lug nut size for your Bronco Sport, check these authoritative sources:
- Owner’s manual or dealership service bulletin for lug nut specs
- Vehicle door jamb sticker or wheel labeling for wheel and lug information
- Ford Parts catalog or your dealer’s parts department for your model year and trim
By cross-checking these sources, you can ensure you have the correct lug nuts for your wheels and avoid improper seating or torque.
Summary
For most Ford Bronco Sport models, the standard lug nut size is M14 x 1.5 with a 21 mm hex head, designed for the 5x108 mm wheel pattern. Always verify the size for your exact build—especially if you’re using aftermarket wheels—and follow Ford’s torque specifications when tightening.
Can I use 7/8 socket for 22mm?
Yes, you can use a 7/8" socket for a 22mm bolt or nut because they are the same size, with a very small difference that is negligible in practice. 22mm is equal to approximately 0.8660.8660.866 inches, and 7/87 / 87/8 inch is equal to 0.8750.8750.875 inches.
- Size conversion: The two sizes are effectively interchangeable, as they are the closest imperial and metric equivalents.
- Fit: A 7/87 / 87/8" socket will fit on a 22mm bolt. It may feel a little loose, but it will still work.
- Impact tools: This combination is commonly used for impact tools, like those for lug nuts, where sockets are often stamped with both sizes.
- Warning: It's important to use a socket with the correct number of points (e.g., 6-point or 12-point) to avoid damaging the bolt or nut, especially on older or rounded-off fasteners.
What size are Ford Bronco lug nuts?
The lug nut size for a 2021+ Ford Bronco is M12x1.5mm with a 13/16-inch (21mm) socket size. For the Bronco Raptor models, the lug nuts are 14mmx1.5mm. Older Broncos use a 1/2-20 thread size.
For modern Ford Broncos (2021+)
- Thread Size: M12x1.5mm
- Socket Size: 13/16" (or 21mm)
- Note: While 19mm can sometimes fit, the 13/16" socket is the standard for these models.
For Bronco Raptor models
- Thread Size: 14mmx1.5mm
- Socket Size: 13/16" (or 21mm)
For classic Ford Broncos
- Thread Size: 1/2"-20 UNF
Important considerations
- Seat Type: Aftermarket wheels may require a different seat type (such as conical, ball, or flat) than the factory lug nuts. It is crucial to match the lug nut seat type to your specific wheels.
- Safety: Always use lug nuts from a reputable brand to ensure quality and safety, and always confirm the correct specifications before purchasing.
What size socket for Ford lug nuts?
The most common socket size for Ford lug nuts is 13/16" or 21mm, especially for models like the F-150 and Bronco. However, sizes can vary by model year and specific vehicle, with some models like the Bronco Sport using a 19mm (or 3/4") socket. It is best to confirm the exact size for your vehicle, as some older or different models might use a different size.
- 13/16" or 21mm: This is the most common size for many modern Ford vehicles, including the F-150 and Bronco. Some sources suggest 13/16" may be a slightly tighter fit than 21mm, which can help prevent rounding the lug nuts.
- 19mm (or 3/4"): This size is used on certain models, such as the Bronco Sport.
- Verification: It's important to check your vehicle's manual or confirm the size before buying tools, especially since some models use a different size or have swollen lug nuts that may require a special socket.
- Swollen lug nuts: If you have a Ford with swollen lug nuts, a standard socket may not fit. In these cases, a special "flip" socket, which has a slightly larger size, can be used to remove them.
What size socket for Bronco Sport lug nuts?
19mm hex
The socket size of the 2021-2024 Ford Bronco Sport lug nuts is 3/4”, so you would need a 19mm hex socket to fit. Sometimes, an impact gun can damage the rust-resistant coating of Ford lug nuts, leading to swollen lug nuts.
