1997 Buick Century Bolt Pattern
Checking fitment for your vehicle? Below you will find the factory bolt pattern (also known as the lug pattern) for the 1997 Buick Century, 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) |
1997 Century — Year-Specific Fitment Context
The 1997 Buick Century is in year 6 of 14 using the 5x115 pattern (1992–2005). Wheels from any 1992–2005 Buick Century are cross-compatible with the 1997 model.
Buick Century Bolt Pattern by Year
The table below shows how the Century's wheel specifications have changed over the years. The 1997 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 |
| 2005 | 5x115 | 70.3 | 45 |
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 1997 Buick Century
The 1997 Buick Century uses a 5x115 bolt pattern with a 70.3mm center bore. Aftermarket wheels often have a larger bore (e.g., 73.1mm), requiring hub-centric rings to prevent vibration and ensure proper load distribution. The ideal offset is 45mm; deviations beyond ±5mm may cause rubbing or clearance issues. Always verify lug nut thread pitch (12x1.50) and seat type—factory wheels use a conical (60-degree) seat. Using incorrect lug nuts can lead to wheel loosening. For safety, re-torque after 50 miles of driving.
Historical Fitment Data Reference
In our dataset, Buick Century appears from 1992 to 2005 (14 model years). Across recorded model years, this model generally keeps the same bolt pattern.
- Observed bolt-pattern variants for this model: 1
- Observed center-bore variants for this model: 1
- Observed lug-size variants for this model: 1
- Observed total offset span across years: 0.0 mm
Quick Tips & Safety Warnings
- ✅ Re-torque lug nuts to 100 ft-lbs after 50 miles of driving.
- ✅ Avoid using wheels from 2006+ Buick models as they switched to 5x120mm pattern.
- ✅ Check for caliper clearance when using wheels with offset below 40mm.
- ⚠️ 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).
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1997 Buick Century — Frequently Asked Questions
What is the bolt pattern for a 1997 Buick Century?
The 1997 Buick Century 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 Century have the same bolt pattern as the 1997?
The Buick Century uses the 5x115 pattern from 1992 through 2005. Wheels from any of these model years are dimensionally compatible with the 1997, provided the offset and center bore also match.
What is the center bore of a 1997 Buick Century?
The factory center bore (hub bore) for the 1997 Buick Century is 70.3mm. If your aftermarket wheels have a larger hub bore, you will need hub-centric rings to prevent vibration.
Can I put aftermarket wheels on my 1997 Buick Century?
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).
Do 1997 Buick Centurys use lug bolts or lug nuts?
The 1997 Century requires N 12x1.50 hardware. Check your specific trim to ensure you use the correct conical or spherical seating.
How do I measure the bolt pattern on my 1997 Buick?
The 1997 Century uses a 5x115 pattern. For 4, 6, or 8-lug wheels, measure center-to-center across opposite holes. For 5-lug, measure from the center of one hole to the back of the opposite hole.
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