DIN6791 Semitubular Pan Head Rivets
DIN 6791 Semitubular Pan Head Rivets have a partially hollow shank that is formed at the open end during installation, allowing the rivet to be secured by flaring or expanding the tubular section rather than deforming the entire rivet body. This design requires less forming force than a solid rivet and provides a controlled, repeatable fastening method for components that need to be permanently joined.
The pan head provides a defined bearing surface on the visible side of the assembly, while the semitubular shank accommodates different forming methods depending on the material and joint design. DIN 6791 rivets are available in different diameters and lengths and can be supplied in materials selected for the required strength, corrosion resistance, and forming characteristics, making them suitable for sheet-metal parts, brackets, housings, electrical components, and mechanical assemblies.
Specification:
DIN 6791 Semitubular Pan Head Rivets are specified according to the material, head style, tubular shank design, and forming requirements of the finished joint. The semitubular construction leaves part of the shank hollow, allowing the open end to be flared or expanded during riveting. This makes the rivet suitable for assemblies where controlled deformation is preferred over fully upsetting a solid shank.
Material selection depends on the forming process and service environment. Steel is commonly used for general mechanical assemblies, while stainless steel is selected when the joint is exposed to moisture or corrosive conditions. Aluminum can be used where lower weight and easier forming are required. Depending on the material, plain, zinc-plated, or other surface finishes can be supplied.
| Item | Specification |
|---|---|
| Standard | DIN6791 |
| Product Type | Semitubular Pan Head Rivet |
| Head Type | Pan Head |
| Shank Type | Semitubular Hollow |
| Diameter | Φ1.6-Φ10 |
| Length | 3-50mm |
| Material | Steel,Stainless Steel,Aluminum |
| Surface Treatment | Bright Finish/Passivation/Zinc Plated |
| Installation | Flaring/Expanding of Tubular End |
Dimension Chart of DIN6791 Semitubular Pan Head Rivets:
The DIN 6791 dimension chart focuses on the geometry of the rivet and the dimensions required for correct installation. The nominal diameter determines the required hole size, while the rivet length needs to provide sufficient material for the tubular end to form a secure closing head after riveting. The pan head dimensions also determine the bearing area and the finished appearance of the joint. The chart covers the main dimensions of DIN 6791 Semitubular Pan Head Rivets, including rivet diameter (d), length (l), pan head diameter (dk), head height (k), and the dimensions of the hollow tubular section. These measurements can be checked against the thickness of the components, hole diameter, and selected riveting process before production or assembly.
| Mon | Φ1.6 | Φ2 | Φ2.5 | Φ3 | Φ3.5 | Φ4 | Φ5 | Φ6 | Φ8 | Φ10 |
| d max | 1.65 | 2.1 | 2.6 | 3.1 | 3.6 | 4.1 | 5.15 | 6.15 | 8.15 | 10.2 |
| d min | 1.55 | 1.9 | 2.4 | 2.9 | 3.4 | 3.9 | 4.85 | 5.85 | 7.85 | 9.8 |
| dk max | 3.2 | 4 | 5 | 6 | 7 | 8 | 10 | 12 | 16 | 20 |
| dk min | 2.9 | 3.7 | 4.7 | 5.7 | 6.42 | 7.42 | 9.42 | 11.3 | 15.3 | 18.7 |
| d1 min | 1.52 | 1.87 | 2.37 | 2.87 | 3.37 | 3.87 | 4.82 | 5.82 | 6.82 | 9.4 |
| d2 max | 1.04 | 1.34 | 1.84 | 2.04 | 2.34 | 2.84 | 3.68 | 4.38 | 6.18 | 7.82 |
| d2 min | 0.9 | 1.2 | 1.7 | 1.9 | 2.2 | 2.7 | 3.5 | 4.2 | 6 | 7.6 |
| a max | 0.8 | 1 | 1.25 | 1.5 | 1.75 | 2 | 2.5 | 3 | 4 | 5 |
| k max | 0.825 | 1.025 | 1.225 | 1.425 | 1.625 | 1.925 | 2.325 | 2.725 | 3.65 | 4.55 |
| k min | 0.575 | 0.775 | 0.975 | 1.175 | 1.375 | 1.675 | 2.075 | 2.475 | 3.35 | 4.25 |
| r max | 0.2 | 0.2 | 0.2 | 0.2 | 0.3 | 0.3 | 0.3 | 0.4 | 0.4 | 0.5 |
| t max | 2 | 3 | 3 | 3.5 | 4.5 | 4.5 | 5.5 | 7 | 8.5 | 10.5 |
| t min | 1.5 | 2.5 | 2.5 | 3 | 4 | 4 | 5 | 6.5 | 8 | 10 |
Application of DIN6791 Semitubular Pan Head Rivets:
Stainless steel DIN6791 semitubular pan head rivets provide a dependable fastening solution for industries that require strength, corrosion resistance, and consistent performance. Compared with conventional fastening methods, these rivets offer advantages such as simple installation, compact structure, and excellent durability, making them suitable for both indoor and outdoor applications.
| Application | Details |
|---|---|
| Pan Head Rivets | Stainless steel DIN6791 semitubular pan head rivets are widely used in various industries where reliable, permanent fastening and corrosion resistance are required. Their semi-tubular design allows easy installation while providing strong mechanical connection and a clean finished appearance. |
| Automotive Industry | DIN6791 semitubular pan head rivets are used for fastening automotive interior components, brackets, panels, electrical parts, and mechanical assemblies. Stainless steel materials provide excellent resistance against moisture, chemicals, and harsh environments. |
| Electrical & Electronics Industry | These rivets are commonly applied in electrical equipment, control cabinets, switches, terminals, and electronic assemblies. Their precise dimensions and corrosion-resistant properties help ensure stable and long-lasting connections. |
| Machinery & Equipment Manufacturing | Stainless steel semitubular rivets are suitable for assembling machine components, protective covers, metal frames, and industrial equipment. They provide a reliable fastening solution where welding or threaded fasteners are not suitable. |
| Furniture & Hardware Industry | DIN6791 rivets are used in furniture fittings, hardware accessories, locks, hinges, and decorative metal components. Their pan head design provides a smooth appearance and secure fastening. |
| Appliance Industry | These rivets are applied in household appliances, kitchen equipment, and industrial appliances for joining metal parts and structural components while maintaining good corrosion resistance. |