Standard extra-large flange rivets are designed for permanent fastening applications where an especially large bearing surface is required on the material.
Compared with conventional dome head and large flange rivets, the extra-large flange provides a wider contact area around the fastening point, helping to distribute the load over a larger surface.
Within the Bearfix DIN 7337 range, this configuration is identified with the suffix TXL.
DIN 7337 extra-large flange rivets
The Bearfix AL-TXL range combines an aluminium Mg 3.5 rivet body with a zinc-plated steel mandrel.
According to the Bearfix catalogue, this family is available in diameters from 4.0 to 4.8 mm.
The extra-large flange head is intended for applications where a particularly wide bearing area is required around the fastening point.
Characteristics of extra-large flange rivets
- Extra-large flange head.
- DIN 7337 standard configuration.
- Aluminium Mg 3.5 rivet body.
- Zinc-plated steel mandrel.
- Available in 4.0 and 4.8 mm diameters.
- Different lengths and grip ranges available.
- Installation from only one side of the joint.
AL-TXL – Aluminium Mg 3.5 / zinc-plated steel
AL-TXL rivets are the extra-large flange version within the Bearfix standard rivet range.
This configuration is designed to provide a larger bearing surface than the TL large flange version.
The increased head diameter makes it possible to distribute the fastening pressure over a wider area of the component.
4.8 mm extra-large flange range
The Bearfix catalogue includes a broad range of 4.8 mm extra-large flange rivets.
Available references include:
- MXAL4810TXL
- MXAL4812TXL
- MXAL4814TXL
- MXAL4816TXL
- MXAL4818TXL
- MXAL4820TXL
- MXAL4822TXL
- MXAL4824TXL
- MXAL4827TXL
For this 4.8 mm configuration, the catalogue specifies an extra-large flange diameter of 16 mm.
4.8 mm dimensions and grip ranges
| Length | Grip range | Reference |
|---|---|---|
| 10 mm | 1–6 mm | MXAL4810TXL |
| 12 mm | 2–8 mm | MXAL4812TXL |
| 14 mm | 4–10 mm | MXAL4814TXL |
| 16 mm | 6–12.5 mm | MXAL4816TXL |
| 18 mm | 8–14 mm | MXAL4818TXL |
| 20 mm | 10–16 mm | MXAL4820TXL |
| 22 mm | 12–18 mm | MXAL4822TXL |
| 24 mm | 12.5–20 mm | MXAL4824TXL |
| 27 mm | 15–23 mm | MXAL4827TXL |
Applications
Extra-large flange rivets are particularly useful when the fastening load needs to be distributed over a large surface.
They can be suitable for:
- Thin sheet materials.
- Soft or lower-strength materials.
- Components requiring a particularly wide bearing surface.
- Assemblies where a larger visible rivet head is acceptable or required.
Large flange or extra-large flange?
Bearfix standard rivets include two enlarged head configurations:
- TL – Large flange: provides a larger bearing surface than a conventional dome head.
- TXL – Extra-large flange: provides an even wider bearing surface.
The appropriate option depends on the geometry of the assembly and the amount of surface area required around the fastening point.
How to select an extra-large flange rivet
To correctly select an extra-large flange rivet, consider:
- Rivet diameter.
- Rivet length.
- Total thickness of the materials to be joined.
- Hole diameter.
- Required head diameter.
- Grip range.
- Rivet body and mandrel materials.
The rivet length should be selected according to the actual total thickness of the joint.
Standard rivet head types
Select the standard rivet configuration you need to view its characteristics, dimensions, materials and available references.
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DIN 7337 standard rivet range
.
Bearfix RIVET range
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