


Hexagon Flange Bolts
Hexagonal flange bolts have hexagonal heads and integrated flanges that combine bolts and washers into a single unit to evenly distribute load and prevent loosening.
Product Technical Parameters
| ●Material: Carbon Steel and Stainless Steel | |
| ●Surface Treatment: Galvanized, Nickel Plated, Black Oxide, Hot Dip Galvanizing, Dacromet | |
| ●Metric Strength Grades: 4.8, 8.8, 10.9, 12.9 | ●Imperial Strength Grades: 2, 5, 8 |
| ●Metric Thread Diameter: M5 ~ M20 | ●Imperial Thread Diameter: 1/4 ~ 3/4 |
| ●Metric Bolt Length: 8 ~ 200
|
●Imperial Bolt Length: 1-1/4 ~ 10
|
Product Description of Hex Flange Bolts
- Function and Usage: Hexagonal flange bolts provide firm tightening through built-in flanges that distribute the load over a larger area, reducing the risk of damage and eliminating the need for separate washers.
- Application Fields: These bolts are commonly used in automotive, mechanical and structural applications where shock resistance and load distribution are important.
- Needs Solved: They improve assembly efficiency by simplifying the fastening process and improve the stability and durability of connected parts under stress or vibration.
Wanhong Fasteners offers high quality hex flange bolts in various sizes and materials to meet different industrial needs.
Data Sheet of Hexagon flange bolts
Hexagon flange bolts Dimensions Chart: Based on DIN 6921

| (mm) | M5 | M6 | M8 | M10 | M12 | M14 | M16 | M20 |
| P | 0.8 | 1 | 1|1.25 | 1|1.25|1.5 | 1.25|1.5|1.75 | 1.5|2 | 1.5|2 | 1.5|2.5 |
| da max | 5.7 | 6.8 | 9.2 | 11.2 | 13.7 | 15.7 | 17.7 | 22.4 |
| dc max | 11.8 | 14.2 | 18 | 22.3 | 26.6 | 30.5 | 35 | 43 |
| ds max | 5 | 6 | 8 | 10 | 12 | 14 | 16 | 20 |
| ds min | 4.82 | 5.82 | 7.78 | 9.78 | 11.73 | 13.73 | 15.73 | 19.67 |
| e min | 8.71 | 10.95 | 14.26 | 16.5 | 17.62 | 19.86 | 23.15 | 29.87 |
| Lf max | 1.4 | 2 | 2 | 2 | 3 | 3 | 3 | 4 |
| k max | 5.4 | 6.6 | 8.1 | 9.2 | 11.5 | 12.8 | 14.4 | 17.1 |
| r min | 0.25 | 0.4 | 0.4 | 0.4 | 0.6 | 0.6 | 0.6 | 0.8 |
| s max | 8 | 10 | 13 | 15 | 16 | 18 | 21 | 27 |
| s min | 7.78 | 9.78 | 12.73 | 14.73 | 15.73 | 17.73 | 20.67 | 26.67 |
Equivalent Standards: DIN EN 1665S | EN 1665S
Some of the standards listed above may be considered approximately equivalent. If there are differences in dimensions, please adhere to the original standard
Hexagon flange bolts Dimensions Chart: Based on ASME/ANSI B18.2.1-Table 8

| (inch) | 1/4 | 5/16 | 3/8 | 7/19 | 1/2 | 9/16 | 5/8 | 3/4 |
| P | 20|28|32 | 18|24|32 | 16|24|32 | 14|20|28 | 13|20|28 | 12|18|24 | 11|18|24 | 10|16|20 |
| ds max | 0.25 | 0.3125 | 0.375 | 0.4375 | 0.5 | 0.5625 | 0.625 | 0.75 |
| ds min | 0.245 | 0.3065 | 0.369 | 0.4305 | 0.493 | 0.5545 | 0.617 | 0.741 |
| s max | 0.375 | 0.5 | 0.5625 | 0.625 | 0.75 | 0.8125 | 0.9375 | 1.125 |
| s min | 0.367 | 0.489 | 0.551 | 0.612 | 0.736 | 0.798 | 0.922 | 1.1 |
| e max | 0.433 | 0.577 | 0.65 | 0.722 | 0.866 | 0.938 | 1.083 | 1.299 |
| e min | 0.409 | 0.548 | 0.618 | 0.685 | 0.825 | 0.895 | 1.034 | 1.234 |
| dc max | 0.56 | 0.68 | 0.81 | 0.93 | 1.07 | 1.19 | 1.33 | 1.59 |
| k max | 0.28 | 0.32 | 0.39 | 0.46 | 0.51 | 0.57 | 0.62 | 0.73 |
Get A Free Quote Now !
Get durable, high-quality fasteners for your specific needs. Submit an inquiry to receive a customized quote!
Related News
1. Introduction: Why Bolt Manufacturing Matters Bolts are the key feature in modern engineering, showing up in countless applications across […]
1. Introduction Ever wondered why stainless steel screws were the deal in construction and manufacturing and even found a place […]
1. Introduction 1.1Background Screws, as one of the most common fasteners, play a vital role in mechanical connections. Whether in […]
In heavy machinery manufacturing, the quality of connecting parts in key areas directly affects the safety and reliability of the […]