
Hexagonal Bolts
SKU: HC-1180179097444028416
Bolt: Mechanical component, cylindrical threaded fastener with nut. A type of fastener consisting of a head and a screw (cylindrical body with external threads), which needs to be matched with a nut to securely connect two parts with through holes.

Key Features
- ✓Third-Party Inspection Support
- ✓Sufficient Inventory Supply
- ✓International Standard Certification
- ✓Custom Processing Service
Contact Us
- Phone:+86 15052357278
- Email:haven@hongchen-steel.com
- WhatsApp:+86 15052357278
Scan to chat

Product Description
Bolt: Mechanical component, cylindrical threaded fastener with nut. A type of fastener consisting of a head and a screw (cylindrical body with external threads), which needs to be matched with a nut to securely connect two parts with through holes. The material used in the manufacturing of the bolts will determine its strength, applications, corrosion resistance etc. There are several materials of Bolts and some of the popular ones are: ● Zinc-Plated Steel: It is one of the popular and commonly used bolt materials for general purpose applications, usually indoor. Depending on the type of manufacturing, the color of the bolt may be bluish or yellowish tint. It is a low carbon steel with a Zinc coating that provides moderate corrosion resistance. They are very cheap to manufacture as well.
Specifications
Product Parameters
| Imperial Bolt Size Chart | |||||||||||||
| Nominal Size | Bolt Diameter ‘D’ | Across Flats ‘A’ | Across Corners ‘B’ | Head Height ‘C’ | Thread Length ‘L’ | Transition Length ‘Y’ | |||||||
| Max (in) | Min (in) | Nominal (in) | Max (in) | Min (in) | Max (in) | Min (in) | Nominal (in) | Max (in) | Min (in) | ≤6 in | >6 in | Max (in) | |
| 1/4 | 0.25 | 0.245 | 7/16 | 0.438 | 0.428 | 0.505 | 0.488 | 5/32 | 0.163 | 0.15 | 0.75 | 1 | 0.25 |
| 5/16 | 0.3125 | 0.3065 | 1/2 | 0.5 | 0.489 | 0.577 | 0.557 | 13/64 | 0.211 | 0.195 | 0.875 | 1.125 | 0.278 |
| 3/8 | 0.375 | 0.369 | 9/16 | 0.562 | 0.551 | 0.65 | 0.628 | 15/64 | 0.243 | 0.226 | 1 | 1.25 | 0.312 |
| 7/16 | 0.4375 | 0.4305 | 5/8 | 0.625 | 0.612 | 0.722 | 0.698 | 9/32 | 0.291 | 0.272 | 1.125 | 1.375 | 0.357 |
| 1/2 | 0.5 | 0.493 | 3/4 | 0.75 | 0.736 | 0.866 | 0.84 | 5/16 | 0.323 | 0.302 | 1.25 | 1.5 | 0.385 |
| 9/16 | 0.5625 | 0.5545 | 13/16 | 0.812 | 0.798 | 0.938 | 0.91 | 23/64 | 0.371 | 0.348 | 1.375 | 1.625 | 0.417 |
| 5/8 | 0.625 | 0.617 | 15/16 | 0.938 | 0.922 | 1.083 | 1.051 | 25/64 | 0.403 | 0.378 | 1.5 | 1.75 | 0.455 |
| 3/4 | 0.75 | 0.741 | 1-1/8 | 1.125 | 1.1 | 1.299 | 1.254 | 15/32 | 0.483 | 0.455 | 1.75 | 2 | 0.5 |
| 7/8 | 0.875 | 0.866 | 1-5/16 | 1.312 | 1.285 | 1.516 | 1.465 | 35/64 | 0.563 | 0.531 | 2 | 2.25 | 0.556 |
| 1 | 1 | 0.99 | 1-1/2 | 1.5 | 1.469 | 1.732 | 1.675 | 39/64 | 0.627 | 0.591 | 2.25 | 2.5 | 0.625 |
| 1-1/8 | 1.125 | 1.114 | 1-11/16 | 1.688 | 1.631 | 1.949 | 1.859 | 11/16 | 0.718 | 0.658 | 2.5 | 2.75 | 0.714 |
| 1-1/4 | 1.25 | 1.239 | 1-7/8 | 1.875 | 1.812 | 2.165 | 2.066 | 25/32 | 0.813 | 0.749 | 2.75 | 3 | 0.714 |
| 1-3/8 | 1.375 | 1.363 | 2-1/16 | 2.062 | 1.994 | 2.382 | 2.273 | 27/32 | 0.878 | 0.81 | 3 | 3.25 | 0.833 |
| 1-1/2 | 1.5 | 1.488 | 2-1/4 | 2.25 | 2.175 | 2.598 | 2.48 | 1-5/16 | 0.974 | 0.902 | 3.25 | 3.5 | 0.833 |
| 1-3/4 | 1.75 | 1.738 | 2-5/8 | 2.625 | 2.538 | 3.031 | 2.89 | 1-3/32 | 1.134 | 1.054 | 3.75 | 4 | 1 |
| 2 | 2 | 1.988 | 3 | 3 | 2.9 | 3.464 | 3.306 | 1-7/32 | 1.263 | 1.175 | 4.25 | 4.5 | 1.111 |
| 2-1/4 | 2.25 | 2.238 | 3-3/8 | 3.375 | 3.262 | 3.897 | 3.719 | 1-3/8 | 1.423 | 1.327 | 4.75 | 5 | 1.111 |
| 2-1/2 | 2.5 | 2.488 | 3-3/4 | 3.75 | 3.625 | 4.33 | 4.133 | 1-17/32 | 1.583 | 1.479 | 5.25 | 5.5 | 1.25 |
| 2-3/4 | 2.75 | 2.738 | 4-1/8 | 4.125 | 3.988 | 4.763 | 4.546 | 1-11/16 | 1.744 | 1.632 | 5.75 | 6 | 1.25 |
| 3 | 3 | 2.988 | 4-1/2 | 4.5 | 4.35 | 5.196 | 4.959 | 1-7/8 | 1.935 | 1.815 | 6.25 | 6.5 | 1.25 |
| Thread Pitch | ||
| Bolt Size | Thread Pitch | |
| (in) | Coarse | Fine |
| 1/4 | 20 | 28 |
| 5/16 | 18 | 24 |
| 3/8 | 16 | 24 |
| 7/16 | 14 | 20 |
| 1/2 | 13 | 20 |
| 9/16 | 12 | 18 |
| 5/8 | 11 | 18 |
| 3/4 | 10 | 16 |
| 7/8 | 9 | 14 |
| 1 | 8 | 14 |
| 1-1/8 | 7 | 12 |
| 1-1/4 | 7 | 12 |
| 1-3/8 | 6 | 12 |
| 1-1/2 | 6 | 12 |
| 1-3/4 | 5 | – |
| 2 | 4-1/2 | – |
| 2-1/2 | 4 | – |
| 3 | 4 | – |
| Size | Pitch | Across Flats ‘A’ | Across Corners ‘B’ | Head Height ‘C’ | Bolt Diameter ‘D’ | ||
| (mm) | Max (mm) | Min (mm) | Min (mm) | Max (mm) | Max (mm) | Min (mm) | |
| M5 | 0.8 | 8 | 7.78 | 9.2 | 3.5 | 5 | 4.82 |
| M6 | 1 | 10 | 9.78 | 11.5 | 4 | 6 | 5.82 |
| M8 | 1.25 | 13 | 12.73 | 15 | 5.3 | 8 | 7.78 |
| M10 | 1.5 | 16 | 15.73 | 18.4 | 6.4 | 10 | 9.78 |
| M12 | 1.75 | 18 | 17.73 | 20.7 | 7.5 | 12 | 11.73 |
| M14 | 2 | 21 | 20.67 | 24.2 | 8.8 | 14 | 13.73 |
| M16 | 2 | 24 | 23.67 | 27.7 | 10 | 16 | 15.73 |
| M18 | 2.5 | 27 | 26.67 | 31.2 | 11.5 | 18 | 17.73 |
| M20 | 2.5 | 30 | 29.67 | 34.6 | 12.5 | 20 | 19.67 |
| M22 | 2.5 | 34 | 33.38 | 39.3 | 14 | 22 | 21.67 |
| M24 | 3 | 36 | 35.38 | 41.6 | 15 | 24 | 23.67 |
| M27 | 3 | 41 | 40.38 | 47.3 | 16.7 | 27 | 26.67 |
| M30 | 3.5 | 46 | 45 | 53.1 | 18.7 | 30 | 29.67 |
| M33 | 3.5 | 50 | 49 | 57.7 | 20.5 | 33 | 32.61 |
| M36 | 4 | 55 | 53.8 | 63.5 | 22.5 | 36 | 35.61 |
| Thread Pitch | |||
| Size | Coarse (mm) | Fine (mm) | Super Fine (mm) |
| M2 | 0.4 | – | – |
| M2.5 | 0.45 | – | – |
| M3 | 0.5 | – | – |
| M3.5 | 0.6 | – | – |
| M4 | 0.7 | – | – |
| M5 | 0.8 | – | – |
| M6 | 1 | 0.75 | – |
| M7 | 1 | – | – |
| M8 | 1.25 | 1 | – |
| M10 | 1.5 | 1.25 | 1 |
| M12 | 1.75 | 1.5 | 1.25 |
| M14 | 2 | 1.5 | – |
| M16 | 2 | 1.5 | – |
| M18 | 2.5 | 1.5 | – |
| M20 | 2.5 | 1.5 | – |
| M22 | 2.5 | 1.5 | – |
| M24 | 3 | 2 | – |
| M27 | 3 | 2 | – |
| M30 | 3.5 | 2 | – |
| M33 | 3.5 | 2 | – |
| M36 | 4 | 3 | – |
| M42 | 4.5 | 3 | – |
| M48 | 5 | 3 | – |
| M56 | 5.5 | 3 | – |