2001 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 2001 Buick Regal, along with offset and center bore data.
| Bolt Pattern (Lug Pattern) | 5x115 |
|---|---|
| Lug Nut / Bolt Size | N 12x1.50 |
| Center Bore (CB) | 70.3 mm |
| Offset (ET) | 45 |
| Torque Specs | 80 ft-lbs (108 Nm) |
2001 Regal — Year-Specific Fitment Context
The 2001 Buick Regal is in year 10 of 13 using the 5x115 pattern (1992–2004). Wheels from any 1992–2004 Buick Regal are cross-compatible with the 2001 model. Across its full production run (1992–2017), the Regal has also used: 5x120.
Buick Regal Bolt Pattern by Year
The table below shows how the Regal's wheel specifications have changed over the years. The 2001 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 |
5x115 Pattern Context
This bolt pattern appears on 498 vehicles in our current database and is considered moderately common.
Examples of other vehicles using 5x115:
Expert Buying Guide for 2001 Buick Regal
For your 2001 Buick Regal, the 5x115 bolt pattern and 70.3mm center bore are critical. Aftermarket wheels often have a larger center bore (73.1mm common), requiring hub-centric rings to prevent vibration and ensure load is on the hub, not the lugs. Offset is sensitive: stock is 45mm; deviations affect handling and clearance. Stay within ±5mm to avoid rubbing or poor steering response. Always use lug nuts with the correct thread pitch (12x1.5) and seat type (conical/60-degree). Never mix seat types—using incorrect lug nuts can cause wheel detachment. Verify wheel load rating exceeds vehicle weight. For used wheels, check for cracks or bends.
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 after 50-100 miles of driving to ensure proper seating.
- ✅ Avoid using universal 'mag' lug nuts; they may not seat correctly on steel or alloy wheels.
- ✅ If installing wheels from a 1992-2004 Regal, confirm center bore is 70.3mm; some aftermarket wheels may require rings.
- ⚠️ Verify thread pitch before installation; M12x1.25 and M12x1.5 are not interchangeable.
- ⚠️ Torque lugs in a star pattern to 80 ft-lbs (108 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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2001 Buick Regal — Frequently Asked Questions
What is the bolt pattern for a 2001 Buick Regal?
The 2001 Buick Regal uses a 5x115 bolt pattern (also called lug pattern or PCD). The center bore is 70.3mm and the offset is 45mm.
What other years of Buick Regal have the same bolt pattern as the 2001?
The Buick Regal uses the 5x115 pattern from 1992 through 2004. Wheels from any of these model years are dimensionally compatible with the 2001, provided the offset and center bore also match.
What does 45mm offset mean for the 2001 Regal?
An offset of 45mm means the wheel's mounting surface is 45mm away from its centerline. Changing this value drastically can affect suspension geometry and wheel bearing wear on your Buick.
Can I put aftermarket wheels on my 2001 Buick Regal?
Absolutely. Just ensure the aftermarket wheels have a 5x115 bolt pattern, an offset near 45mm, and a center bore of at least 70.3mm (using hub rings if larger).
How tight should I torque the lug nuts on a 2001 Buick Regal?
Refer to your owner's manual for exact specs, but always tighten the N 12x1.50 hardware in a star or crisscross pattern. Re-torque after the first 50 miles of driving.
What lug nut size does the 2001 Buick Regal use?
The 2001 Buick Regal uses N 12x1.50 lug nuts. Always verify the thread pitch and seat type (cone, ball, or flat) match your aftermarket wheels.
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