Clearance Hole Tool
Find the perfect clearance fit for bolts, screws, and fasteners in seconds. Ideal for engineering, fabrication, and DIY projects.
Enter Bolt Details
What is a Clearance Hole?
A clearance hole is slightly larger than the bolt diameter, allowing smooth insertion without binding. It ensures proper assembly in mechanical and construction applications.
Why Proper Fit Matters
- Prevents assembly stress and misalignment
- Improves structural reliability
- Ensures easier installation and maintenance
Common Fit Guidelines
- Close Fit: Minimal clearance for precision assemblies
- Normal Fit: Standard engineering applications
- Loose Fit: Easy assembly with more tolerance
Engineering Applications
This tool is widely used in mechanical design, fabrication workshops, construction planning, metalwork, and product assembly where accurate fastener fitting is required.

