When working with bolts and screws, having the right wrench clearance is crucial.
This Wrench Clearance Calculator tool is designed to help you determine the perfect clearance.
It ensures precision and efficiency in your work.
How to Use the Wrench Clearance Calculator
- Enter the bolt size in the format: diameter-thread (e.g., 1/4-20 or M8x1.25).
- Select the desired clearance type: Close Fit, Normal Fit, or Loose Fit.
- Click the “Calculate Clearance” button to get the result.
- The result will show the appropriate clearance for the entered bolt size and selected fit type.
- To reset the form, click the “Clear” button.
What is Wrench Clearance?
Wrench clearance refers to the space required around a bolt or screw to allow a wrench or socket to properly fit and function.
This is important.
It ensures that you can effectively tighten or loosen the fastener without any obstruction.
Tap Drill Size Table
Selecting the correct tap drill size is crucial for creating the perfect thread.
Here are common tap drill sizes with their metric equivalents:
Small Taps:
| Tap Size | Drill Size (inches) | Drill Size (mm) |
|---|---|---|
| 80 | 0.0135 | 0.343 |
| 10-32 | 0.159 | 4.039 |
| 4-40 | 0.089 | 2.261 |
Medium Taps:
| Tap Size | Drill Size (inches) | Drill Size (mm) |
|---|---|---|
| 5/16-18 | 0.257 | 6.527 |
| 6-32 | 0.1065 | 2.709 |
| 10-24 | 0.1495 | 3.797 |
Large Taps:
| Tap Size | Drill Size (inches) | Drill Size (mm) |
|---|---|---|
| 3/8-16 | 0.313 | 7.938 |
| 1/2-13 | 0.421 | 10.693 |
| 1/4-20 | 0.201 | 5.105 |
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Clearance Hole Size Table
If you need to create a clearance hole, use the following table to find the right size for various bolts.
This includes both standard and metric measurements:
Small Bolts:
| Bolt Size | Clearance Hole Size (inches) | Clearance Hole Size (mm) |
|---|---|---|
| 10-32 | 0.196 | 4.978 |
| 8-32 | 0.173 | 4.394 |
| 6-32 | 0.144 | 3.658 |
Medium Bolts:
| Bolt Size | Clearance Hole Size (inches) | Clearance Hole Size (mm) |
|---|---|---|
| 4-40 | 0.112 | 2.845 |
| 10 Screw | 0.201 | 5.105 |
| 1/4-20 | 0.257 | 6.527 |
Large Bolts:
| Bolt Size | Clearance Hole Size (inches) | Clearance Hole Size (mm) |
|---|---|---|
| 1/2-28 | 0.531 | 13.489 |
Counterbore Dimensions Table
For those needing counterbore holes, this table provides the standard sizes, including depth and diameter:
Before we dive into the table, here are the abbreviations used:
- CB Diam (in): Counterbore Diameter (inches)
- CB Depth (in): Counterbore Depth (inches)
- CB Diam (mm): Counterbore Diameter (mm)
- CB Depth (mm): Counterbore Depth (mm)
Small Screws:
| Screw Size | CB Diam (in) | CB Depth (in) | CB Diam (mm) | CB Depth (mm) |
|---|---|---|---|---|
| 4-40 | 0.188 | 0.125 | 4.775 | 3.175 |
| 10-32 | 0.25 | 0.1875 | 6.35 | 4.762 |
Medium Screws:
| Screw Size | CB Diam (in) | CB Depth (in) | CB Diam (mm) | CB Depth (mm) |
|---|---|---|---|---|
| 1/4-20 | 0.313 | 0.25 | 7.95 | 6.35 |
| 5/16-18 | 0.375 | 0.3125 | 9.525 | 7.938 |
Large Screws:
| Screw Size | CB Diam (in) | CB Depth (in) | CB Diam (mm) | CB Depth (mm) |
|---|---|---|---|---|
| 3/8-16 | 0.438 | 0.375 | 11.125 | 9.525 |
| 1/2-13 | 0.625 | 0.5 | 15.875 | 12.7 |
Frequently Asked Questions
1. What size hole do I need for a 10-32 screw?
For a 10-32 screw, you typically need a clearance hole of approximately 0.196 inches (4.978 mm).
2. How do I determine the correct tap drill size?
Use the tap drill size table above to find the appropriate drill bit for your tap size. For example, a 1/4-20 tap requires a drill bit size of 0.201 inches (5.105 mm).
3. What is the difference between a counterbore and a countersink?
A counterbore creates a flat-bottomed hole to fit the head of a screw, while a countersink creates a conical hole for screws with angled heads. Refer to the counterbore dimensions table for more details.
4. How do I use the Wrench Clearance Calculator?
Simply enter the bolt size into the calculator, and it will display the required wrench clearance. This tool helps ensure you have the necessary space to effectively use your wrench or socket.
Wrapping Up
It is important to ensure the correct wrench clearance for any task involving bolts and screws.
With this Wrench Clearance Calculator, you can find the necessary clearance without any error.
It will save time and improve the quality of your work.
Don’t forget to check out the related tables to further enhance your precision and efficiency.
Stay tuned for more tips and tools to help you achieve the best results in your projects!
