How to Measure 8×170 Bolt Pattern
Understanding the bolt pattern of your vehicle’s wheels is crucial for various reasons, including compatibility with tires, lug nuts, and wheel covers. One common bolt pattern is the 8×170, which refers to the diameter of the circle that passes through the center of the bolt holes (8 inches) and the number of bolt holes (170mm or 6.69 inches). In this article, we will guide you through the process of measuring an 8×170 bolt pattern to ensure proper fitment and functionality.
Firstly, you will need a few tools to measure the bolt pattern accurately. These include a tape measure, a square, and a straight edge. It is essential to have these tools on hand before you begin the measurement process.
To start, locate the bolt holes on your wheel. These are the holes where the lug nuts are typically placed. You will need to measure the distance between the center of one bolt hole to the center of the adjacent bolt hole in both the horizontal and vertical directions.
Horizontal Measurement
1. Place the square on the wheel so that it is resting on the center of one bolt hole.
2. Use the straight edge to ensure the square is perfectly vertical.
3. Measure the distance from the center of the square to the center of the adjacent bolt hole in the horizontal direction.
4. Repeat this process for all adjacent bolt holes to ensure consistency.
Vertical Measurement
1. Place the square on the wheel so that it is resting on the center of one bolt hole.
2. Use the straight edge to ensure the square is perfectly horizontal.
3. Measure the distance from the center of the square to the center of the adjacent bolt hole in the vertical direction.
4. Repeat this process for all adjacent bolt holes to ensure consistency.
Once you have measured both the horizontal and vertical distances, you can calculate the bolt pattern. To do this, multiply the horizontal measurement by the number of bolt holes in the horizontal direction, and then multiply the vertical measurement by the number of bolt holes in the vertical direction. Finally, divide the product by the square of the number of bolt holes in the horizontal direction.
For example, if you have measured a horizontal distance of 6.69 inches and a vertical distance of 6.69 inches, and there are 6 bolt holes in the horizontal direction, the calculation would be as follows:
(6.69 inches x 6) + (6.69 inches x 6) = 40.14 inches
40.14 inches / (6 x 6) = 8 inches
In this case, the calculated bolt pattern is 8×170, which matches the pattern on your wheel.
By following these steps, you can accurately measure the 8×170 bolt pattern on your vehicle’s wheels. This information is essential for ensuring compatibility with tires, lug nuts, and wheel covers, and can help prevent potential issues down the road.
