1993 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 1993 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) |
1993 Century — Year-Specific Fitment Context
The 1993 Buick Century is in year 2 of 14 using the 5x115 pattern (1992–2005). Wheels from any 1992–2005 Buick Century are cross-compatible with the 1993 model.
Buick Century Bolt Pattern by Year
The table below shows how the Century's wheel specifications have changed over the years. The 1993 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 1993 Buick Century
For your 1993 Buick Century, the 5x115 bolt pattern and 70.3mm center bore are critical. Aftermarket wheels often have a larger center bore (e.g., 73.1mm), requiring hub-centric rings to prevent vibration and ensure proper load distribution. The factory offset is 45mm; deviations beyond ±5mm may cause rubbing on suspension or fenders. Always use lug nuts with the correct thread pitch (12x1.50) and seat type (conical/60-degree) to avoid wheel loosening. Never use ball-seat lug nuts on conical-seat wheels. Verify wheel bore and offset before purchase.
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-lb after 50 miles of driving.
- ✅ Avoid using wheels from 1991 or earlier Buick Century (4x100 pattern).
- ✅ Check for clearance with brake calipers when using 16-inch or larger wheels.
- ⚠️ 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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1993 Buick Century — Frequently Asked Questions
What is the bolt pattern for a 1993 Buick Century?
The 1993 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 1993?
The Buick Century uses the 5x115 pattern from 1992 through 2005. Wheels from any of these model years are dimensionally compatible with the 1993, provided the offset and center bore also match.
What does 45mm offset mean for the 1993 Century?
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.
Do 1993 Buick Centurys use lug bolts or lug nuts?
The 1993 Century requires N 12x1.50 hardware. Check your specific trim to ensure you use the correct conical or spherical seating.
What is the center bore of a 1993 Buick Century?
The factory center bore (hub bore) for the 1993 Buick Century is 70.3mm. If your aftermarket wheels have a larger hub bore, you will need hub-centric rings to prevent vibration.
What lug nut size does the 1993 Buick Century use?
The 1993 Buick Century 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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