Is 5x139 7 the same as 5X5 5 bolt pattern?
Yes. 5x139.7 mm is the same bolt pattern as 5x5.5 inches—the five lug holes sit on a circle 139.7 millimeters in diameter, which equals 5.5 inches. This is different from 5x5.0 inches (127 mm).
Bolt patterns are written as a number of lugs x the bolt-circle diameter. While 5x139.7 and 5x5.5 refer to the same pattern in different units, they are not interchangeable with a 5x5.0 pattern. Fitment also depends on hub bore, offset, brake clearance, and vehicle compatibility.
Understanding bolt-pattern notation
Before shopping for wheels, it helps to understand what the numbers mean and how they relate to your vehicle.
- 5x139.7 means five lug holes arranged on a circle with a diameter of 139.7 mm (the bolt circle).
- 139.7 mm exactly equals 5.5 inches, so 5x139.7 and 5x5.5 are the same pattern expressed in metric or imperial units.
- 5x5.0 inches (127 mm) is a different bolt circle diameter and is not interchangeable with 5x139.7.
- Center bore size matters: wheels with a larger center bore can use hub rings to center on the hub if the bore is smaller, but wheels with a smaller center bore must not be used unless the bore matches exactly.
- Offset and brake-caliper clearance also affect whether a wheel will fit even if the bolt pattern matches.
In practical terms, if a wheel is labeled 5x139.7 or 5x5.5, it is the same bolt pattern. Do not assume compatibility with a 5x5.0 pattern without verifying exact measurements and vehicle specifications.
Practical check steps when evaluating wheels
When confirming fit for a vehicle or a set of wheels, follow these steps.
- Verify the vehicle’s bolt pattern: count lug holes and measure the bolt-circle diameter (BCD) in millimeters or inches.
- Check the wheel center bore size and compare it to the hub bore on the vehicle; plan for hub rings if needed.
- Confirm offset and backspacing to avoid brake/caliper interference or rubbing on the fenders.
- Ensure lug-nut size and thread pitch match the vehicle’s factory hardware or the wheel’s lug hardware.
Correctly matching bolt pattern, center bore, offset, and lug hardware is essential for safe and reliable wheel fitment.
Summary
In short, 5x139.7 mm and 5x5.5 inches describe the same five-lug pattern; they are simply different ways of expressing the same bolt-circle diameter. It is not the same as 5x5.0 inches (127 mm). Always verify center bore, offset, and brake clearance in addition to the bolt pattern when selecting wheels.
