Semi-Tubular Shank Design
The hollow shank structure requires less installation force than solid rivets, allowing fast and efficient assembly while maintaining reliable fastening strength.
DIN 6791 Semitubular Pan Head Rivets
- Standard: DIN 6791
- Material: SUS304, SUS316, SUS410, Carbon Steel
- Size: Nominal Diameters 1.6 to 10 mm
- Surface Treatment: Plain, Zinc Plated, HDG, Dacromet, Ruspert
- Min Order: 5000pcs
- Sample: Free sample (after quote)
- Delivery time: 30 – 45 Days
Product Overview
Product Application
DIN 6791 is a German standard for semi-tubular pan head rivets, designed for permanent, non-threaded fastening applications. Featuring a smooth shank, low-profile pan head, and semi-hollow tubular end, these rivets require less installation force than solid rivets. During assembly, the hollow shank is plastically deformed by pressing or riveting tools to create a strong and reliable permanent joint.
Draw
Specification
What Makes DIN 6791 Unique?
Lower Riveting Force, Protects Delicate Materials
The semi-tubular shank design significantly reduces the force required for riveting. During clinching or flaring, the required expansion force is only around one-quarter of that needed for solid rivets such as DIN 660. This allows DIN 6791 rivets to securely fasten soft or fragile materials, including plastics, phenolic boards, ceramics, and circuit boards, without crushing, cracking, or damaging the workpiece.
Reliable Permanent Fastening with Excellent Vibration Resistance
After installation, the hollow shank forms a strong metal flare that securely locks the assembled components together. As a non-threaded fastener, DIN 6791 eliminates the risk of loosening caused by vibration, impact, or continuous rotation. It provides long-term structural reliability in applications where traditional screws may require additional locking solutions.
Ideal Pivot Solution for Rotating Connections
DIN 6791 rivets can also function as effective pivot pins when properly installed. By controlling the riveting force to create a secure flare without fully clamping the components, the smooth cylindrical shank allows controlled relative rotation between connected parts. This makes them suitable for folding mechanisms, hinges, and movable assemblies.
Product Advantages
Pan Head Structure
The wide pan head provides a larger bearing surface, helping distribute clamping force evenly and reducing damage to connected materials.
Stable Permanent Connection
Once installed, the rivet forms a secure mechanical joint resistant to loosening, making it suitable for long-term fastening applications.
Common Questions
What is DIN 6791?
DIN 6791 specifies semi-tubular pan head rivets.
How does DIN 6791 differ from a standard screw?
DIN 6791 is a non-threaded semi-tubular rivet with a smooth shank. It creates a permanent joint through shank deformation, while screws use threads for removable fastening.
What materials are available for DIN 6791?
Common materials include carbon steel, stainless steel, and brass.
Can DIN 6791 screws be customized?
Yes. Custom sizes, materials, coatings, and packaging are available.
