2011 Buick Regal Bolt Pattern
Checking fitment for your vehicle? Below you will find the factory bolt pattern (also known as the lug pattern) for the 2011 Buick Regal, along with offset and center bore data.
| Bolt Pattern (Lug Pattern) | 5x120 |
|---|---|
| Lug Nut / Bolt Size | N 14x1.50 |
| Center Bore (CB) | 67.1 mm |
| Offset (ET) | 42 |
| Torque Specs | 100 ft-lbs (135 Nm) |
2011 Regal — Year-Specific Fitment Context
The 2011 model year marks the beginning of the Buick Regal's 5x120 bolt pattern era, which continued through 2017 (7 consecutive years). Wheels from any 2011–2017 Buick Regal are cross-compatible with the 2011 model. Across its full production run (1992–2017), the Regal has also used: 5x115.
Buick Regal Bolt Pattern by Year
The table below shows how the Regal's wheel specifications have changed over the years. The 2011 model year is highlighted.
| Year | Bolt Pattern | Center Bore | Offset |
|---|---|---|---|
| 1992 | 5x115 | 70.3 | 45 |
| 1993 | 5x115 | 70.3 | 45 |
| 1994 | 5x115 | 70.3 | 45 |
| 1995 | 5x115 | 70.3 | 45 |
| 1996 | 5x115 | 70.3 | 45 |
| 1997 | 5x115 | 70.3 | 45 |
| 1998 | 5x115 | 70.3 | 45 |
| 1999 | 5x115 | 70.3 | 45 |
| 2000 | 5x115 | 70.3 | 45 |
| 2001 | 5x115 | 70.3 | 45 |
| 2002 | 5x115 | 70.3 | 45 |
| 2003 | 5x115 | 70.3 | 45 |
| 2004 | 5x115 | 70.3 | 45 |
| ▸ 2011 | 5x120 | 67.1 | 42 |
| 2012 | 5x120 | 67.1 | 42 |
| 2013 | 5x120 | 67.1 | 42 |
| 2014 | 5x120 | 67.1 | 42 |
| 2015 | 5x120 | 67.1 | 42 |
| 2016 | 5x120 | 67.1 | 42 |
| 2017 | 5x120 | 67.1 | 42 |
5x120 Pattern Context
This bolt pattern appears on 633 vehicles in our current database and is considered common.
Examples of other vehicles using 5x120:
Expert Buying Guide for 2011 Buick Regal
For your 2011 Buick Regal, the 5x120 bolt pattern and 67.1mm center bore are critical. Aftermarket wheels often have a larger center bore (e.g., 73.1mm), requiring hub-centric rings to prevent vibrations and ensure proper load transfer. The factory offset is 42mm; deviations beyond ±5mm may cause rubbing or clearance issues. Always use lug nuts with the correct thread pitch (14x1.50) and seat type—factory wheels use a cone seat, while aftermarket wheels may require ball or flat seats. Mismatched lug nuts can lead to wheel loosening. Re-torque after 50-100 miles of driving.
Historical Fitment Data Reference
In our dataset, Buick Regal appears from 1992 to 2017 (20 model years). Across model years, this model appears with 2 bolt patterns (5x115, 5x120).
- Observed bolt-pattern variants for this model: 2
- Observed center-bore variants for this model: 2
- Observed lug-size variants for this model: 2
- Observed total offset span across years: 3.0 mm
Quick Tips & Safety Warnings
- ✅ Re-torque lug nuts to 100 ft-lbs after 50-100 miles of driving.
- ✅ When using aftermarket wheels, verify hub-centric ring inner diameter matches 67.1mm and outer diameter matches wheel bore.
- ✅ Avoid using wheels from 5x115 Regal models (pre-2011) as they are not compatible without adapters.
- ⚠️ Confirm bolt pattern carefully. 5x120 is often confused with other common 5-lug patterns.
- ⚠️ Torque lugs in a star pattern to 100 ft-lbs (135 Nm), then re-check torque after 50-100 km (30-60 miles).
- ⚠️ This model has multiple bolt-pattern records across years. Match wheels to exact year/trim before purchase.
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2011 Buick Regal — Frequently Asked Questions
What is the bolt pattern for a 2011 Buick Regal?
The 2011 Buick Regal uses a 5x120 bolt pattern (also called lug pattern or PCD). The center bore is 67.1mm and the offset is 42mm.
What other years of Buick Regal have the same bolt pattern as the 2011?
The Buick Regal uses the 5x120 pattern from 2011 through 2017. Wheels from any of these model years are dimensionally compatible with the 2011, provided the offset and center bore also match.
What does 42mm offset mean for the 2011 Regal?
An offset of 42mm means the wheel's mounting surface is 42mm away from its centerline. Changing this value drastically can affect suspension geometry and wheel bearing wear on your Buick.
What is the center bore of a 2011 Buick Regal?
The factory center bore (hub bore) for the 2011 Buick Regal is 67.1mm. If your aftermarket wheels have a larger hub bore, you will need hub-centric rings to prevent vibration.
What is the factory wheel offset for a 2011 Buick Regal?
The OEM offset for the 2011 Regal is typically around 42mm. Depending on wheel width, a deviation of ±5mm is usually acceptable, but verify suspension clearance.
Do 2011 Buick Regals use lug bolts or lug nuts?
The 2011 Regal requires N 14x1.50 hardware. Check your specific trim to ensure you use the correct conical or spherical seating.
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