Nut Bolt Size, Types, Dimensions & Washers Guide
Ultimate Guide to Nut Bolt Sizes, Types & Applications
Introduction
Nut bolts are essential fasteners in construction, automotive, and industrial applications. Understanding nut bolt size, nut bolt types, and their dimensions is crucial for selecting the right fasteners. This guide covers everything from bolt and nut dimensions to types of nuts and bolts with images.
What Are Nut Bolts?
A nut and bolt work together to fasten materials securely. They are used in mechanical assemblies, construction, and household applications. Key components include:
- Bolts: Threaded fasteners with a hex or round head.
- Nuts: Secure the bolt in place.
- Washers: Prevent loosening and distribute load.
Types of Nuts and Bolts
Here are the common nut bolt types used across industries:
1. Types of Bolts
| Type | Description |
|---|---|
| Hex Bolt | Standard six-sided head bolt |
| Carriage Bolt | Domed head with a square section to prevent rotation |
| Eye Bolt | Circular looped head for hanging applications |
| Stud Bolt | Fully threaded without a head |
| Counter Sunk Screw | Sits flush with the surface for a neat finish |
| Threaded Screws | Fully threaded fasteners |
| Hex Head Screw | Strong and durable for industrial use |
| Stainless Screws | Corrosion-resistant screws for long-term applications |
2. Types of Nuts
| Type | Description |
|---|---|
| Hex Nut | Standard six-sided nut |
| Lock Nut | Prevents loosening due to vibrations |
| Wing Nut | Hand-tightened without tools |
| Flange Nut | Built-in washer for better load distribution |
| Dome Nut | Covers exposed threads for safety |
| Nut V Bolt | Used for secure fastening in critical applications |
3. Types of Washers
| Type | Description |
|---|---|
| Flat Washer | Distributes load evenly |
| Spring Washer | Prevents loosening |
| Lock Washer | Provides extra security against vibration |
| Washers for Nuts | Designed to prevent loosening and ensure stability |
Nut Bolt Size Chart
Understanding bolt and nut dimensions ensures proper selection for any project.
| Bolt Size | Thread Diameter (mm) | Nut Size (mm) |
|---|---|---|
| M6 | 6 | 10 |
| M8 | 8 | 13 |
| M10 | 10 | 17 |
| M12 | 12 | 19 |
| M16 | 16 | 24 |
| M20 | 20 | 30 |
| M24 | 24 | 36 |
| M30 | 30 | 46 |
Applications of Nut Bolts
- Construction: Used in steel frameworks, bridges, and buildings.
- Automobile: Essential for engine assembly and vehicle repairs.
- Industrial Machinery: Fastens moving parts securely.
- Home Improvement: Used in DIY furniture and repairs.
- Electronics: Small SS screws used in gadgets and appliances.
- Aerospace: Special threaded screws used in aircraft components.
Best Fasteners Manufacturers
Looking for fasteners manufacturers? Top suppliers of stainless screws, steel nails, and SS screws include:
- Udhhyog (Delhi-based industrial fastener supplier)
- LPS Fasteners
- Sundram Fasteners
- Unbrako Bolts
- TVS Fasteners
- Precision Screws
FAQs
1. What are the different nut bolt types?
Nut bolts include hex bolts, eye bolts, flange nuts, and threaded screws for various applications.
2. How do I select the right nut bolt size?
Refer to the nut bolt size chart based on the load and application.
3. What is the difference between a screw and a bolt?
A bolt requires a nut, while a screw self-taps into materials.
4. Are SS screws better than steel nails?
SS screws are corrosion-resistant, while steel nails provide stronger penetration.
5. What is the role of washers in nut bolts?
Washers distribute pressure and prevent loosening.
6. What is a stud screw bolt?
A stud screw bolt is a fastener without a head that is threaded on both ends.
7. What are counter sunk screws used for?
They sit flush with surfaces, making them ideal for furniture and decorative uses.
Conclusion
Choosing the right nut bolt types, bolt screw and stud, and washers for nuts is crucial for any project. Ensure you source from reputable fasteners manufacturers for the best quality.
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