1. Introduction
The AutoandArt Wheel Bolt Stud Pattern Gauge is a reliable and convenient hand tool designed for accurately measuring wheel bolt patterns. It supports measurements for 4, 5, 6, and 8 lug rims, providing dimensions in both metric and imperial units. This manual provides essential information for the proper use, care, and maintenance of your gauge.
2. Safety Information
Always handle tools with care. While this gauge is a simple hand tool, ensure you use it in a stable environment. Keep the tool clean and free from debris to ensure accurate measurements. Do not attempt to modify the tool, as this may affect its accuracy and void the warranty.
3. Product Overview
The Wheel Bolt Stud Pattern Gauge consists of a main body with adjustable arms and a measurement scale. The scale provides readings for various lug configurations in both inches and millimeters.

Figure 3.1: Front view of the Wheel Bolt Stud Pattern Gauge, showing the measurement scale and adjustable arms.

Figure 3.2: Close-up view of the gauge's central measurement area, highlighting the metric and imperial scales for different lug patterns.

Figure 3.3: Side view of the Wheel Bolt Stud Pattern Gauge, illustrating its compact design.
4. Setup
The Wheel Bolt Stud Pattern Gauge requires no assembly. It is ready for use directly out of the packaging. Ensure the gauge is clean before use to prevent inaccurate readings due to dirt or debris.
5. Operating Instructions
This gauge is designed to measure the bolt pattern of a wheel or the stud pattern on a vehicle's hub.
5.1 Measuring a Wheel Bolt Pattern
- Identify the number of lug holes on the wheel (4, 5, 6, or 8).
- Align the gauge's adjustable arms with two opposing lug holes. For odd-numbered lug patterns (e.g., 5-lug), align the fixed arm with one lug hole and the adjustable arm with the lug hole directly opposite it, passing through the center of the wheel.
- Slide the adjustable arm until its pin fits snugly into the lug hole.
- Read the measurement indicated on the scale corresponding to the number of lugs. The gauge provides readings in both inches and millimeters.
- For accurate sizing, the gauge can be turned over to measure studs if needed.
5.2 Understanding Bolt Patterns
A bolt pattern is typically expressed as two numbers, for example, 5x114.3mm or 5x4.5 inches. The first number indicates the number of lug holes, and the second number is the diameter of the bolt circle (PCD - Pitch Circle Diameter).
6. Maintenance
To ensure the longevity and accuracy of your Wheel Bolt Stud Pattern Gauge:
- Cleaning: Wipe the gauge with a clean, dry cloth after each use to remove dirt, grease, or debris. Avoid using harsh chemicals that could damage the plastic or the measurement markings.
- Storage: Store the gauge in a dry place, away from direct sunlight and extreme temperatures. Keeping it in its original packaging or a protective case can prevent scratches and damage.
- Inspection: Periodically inspect the gauge for any signs of wear, cracks, or damage to the pins or the measurement scale. If damage is observed, the accuracy of the tool may be compromised.
7. Troubleshooting
This is a simple mechanical tool, and issues are rare. Most problems relate to incorrect usage or environmental factors.
- Inaccurate Readings:
- Ensure the gauge is clean and free of debris that might obstruct the pins or scale.
- Verify that the pins are fully seated in the lug holes.
- Confirm you are reading the correct scale for the number of lugs being measured.
- Difficulty Sliding Arms:
- Check for any foreign objects lodged in the sliding mechanism.
- Clean the sliding tracks with a dry cloth. Do not lubricate, as this can attract dirt.
8. Specifications
| Attribute | Detail |
|---|---|
| Model Number | AA-ADS0579 |
| Brand | AutoandArt |
| Measures Lug Patterns | 4, 5, 6, 8 Lug Rims |
| Measurement Units | Metric and Inches |
| Item Weight | 1 pound (approx. 0.45 kg) |
| Product Dimensions (L x W x H) | 16 x 12 x 1 inches (approx. 40.6 x 30.5 x 2.5 cm) |
| Country of Origin | China |
9. Warranty and Support
The AutoandArt Wheel Bolt Stud Pattern Gauge comes with a 1-Year Limited Warranty from the date of purchase. This warranty covers parts only.
For warranty claims, technical support, or any inquiries regarding your product, please contact AutoandArt customer service through the retailer where the product was purchased or visit the official AutoandArt store page on Amazon: AutoandArt Store.