Tri-Fold Blind Rivets
Tri-Fold Blind Rivets are engineered for applications where standard blind rivets may fail in soft, brittle, or thin sheet materials.
This product belongs to our Blind Rivets range.
Available Materials, Head Types & Surface Finishes for Tri-Fold Blind Rivets
Tri-Fold Blind Rivets are available in multiple diameters, lengths, and grip ranges, with a three-fold expansion design for thin and soft material applications.
| Parameter | Available Options |
| Diameter: | 4.0 mm (5/32″), 4.8 mm (3/16″) |
| Length: | 14-25 mm(Available lengths vary by diameter) |
| Head Style: | Dome Head / Large Flange Head |
| Material: | Aluminum Alloy / Steel / Stainless Steel |
| Surface Finish: | Zinc Plating / Anodizing / Natural/Plain Finish / Custom Coatings |
| Grip Range: | Multiple options available according to rivet size and application |
Specifications & Sizes Options for Tri-Fold Blind Rivets
| d | l +0.99 | dk | Hole | Min.Grip | Max.Grip | K (k2) | L1 | Minimum Tensile Strength (N) | Minimum shear Strength (N) |
| Φ4.0±0.10 | 14.0 | Φ8.0±0.29 | Φ4.2~4.4 | 1.0 | 3.0 | 1.7(1.4) | 27 | 800 | 500 |
| Φ4.0±0.10 | 18.0 | Φ8.0±0.29 | Φ4.2~4.4 | 3.0 | 6.5 | 1.7(1.4) | 27 | 800 | 500 |
| Φ4.8±0.11 | 15.5 | Φ9.5±0.29 | Φ5.0~5.2 | 1.0 | 3.0 | 2(1.6) | 27 | 1291 | 1600 |
| Φ4.8±0.11 | 18.5 | Φ9.5±0.29 | Φ5.0~5.2 | 3.0 | 6.5 | 2(1.6) | 27 | 1291 | 1600 |
| Φ4.8±0.11 | 21.0 | Φ9.5±0.29 | Φ5.0~5.2 | 3.0 | 9.5 | 2(1.6) | 27 | 1291 | 1600 |
| Φ4.8±0.11 | 25.0 | Φ9.5±0.29 | Φ5.0~5.2 | 6.5 | 13.0 | 2(1.6) | 27 | 1291 | 1600 |
Key Advantages of Tri-Fold Blind Rivets
Tri-Fold Blind Rivets form three folding legs on the blind side during setting, creating a broad bearing area that can be useful for fastening soft or thin materials.
Three-Fold Expansion
Forms three legs on the blind side to create a wider bearing area behind the workpiece.
Improved Load Distribution
Distributes the bearing load over a larger area, depending on the material and joint design.
Reduced Risk of Pull-Through
The expanded legs help reduce the risk of the rivet pulling through suitable thin or soft materials.
Suitable for Soft Materials
Well suited to selected applications involving soft, thin, or low-strength materials.
Reliable Joint Formation
Forms a fastening joint when correctly selected and installed according to the product specifications.
One-Side Installation
Allows installation where access to the rear side of the workpiece is limited.
Tri-Fold Blind Rivets vs Structural Blind Rivets
| Feature | Tri-Fold Blind Rivets | Structural Blind Rivets |
|---|---|---|
| Expansion Design | Splits into three legs for wide backside spread | Internal locking mechanism |
| Performance on Soft/Thin Materials | Excellent – minimizes damage and distributes load evenly | Not ideal for soft materials |
| Pull-Through Resistance | Very high (large backside footprint) | Very high |
| Strength Level (Shear & Tensile) | Moderate | Very high (for structural applications) |
Typical Applications for Tri-Fold Blind Rivets
Tri-Fold Blind Rivets are ideal for thin or soft materials and are widely used in:
For applications requiring increased bearing surface on the visible side, Large Flange Open-End Blind Rivets may be considered.
Customization, Quality Control & Supply Capability
RivetFast offers drawing-based customization for Tri-Fold Blind Rivets, including dimensions, materials, head styles, and packaging.
Customization Options
Custom dimensions, materials, head styles, and packaging based on your specifications.
Quality Control
Dimensional inspection and product checks to verify specified dimensions and consistency.
Manufacturing & Bulk Supply
In-house manufacturing to support bulk orders and repeat supply.
Looking for standard or customized Tri-Fold Blind Rivets?
Send us your specifications for a quotation.
Installation Tools & Setting Process for Tri-Fold Blind Rivets
Tri-Fold Blind Rivets can be installed using compatible manual, pneumatic, or electric blind rivet tools, depending on the rivet design and setting requirements.
Need help selecting the right rivet size or grip range?
Why Choose RivetFast for Your Blind Rivets?
ISO 9001 Certified Quality Management
RivetFast manufactures blind rivets under an ISO 9001 certified quality management system, supporting controlled production processes and consistent quality management.
In-House Inspection & Testing
Dimensional checks and relevant product tests help verify specified requirements. Our testing capabilities include tensile, hardness, and salt spray testing, depending on the product and inspection requirements.
A Broad Range of Blind Rivets
From open-end and multi-grip to closed-end, structural, and specialty blind rivets, our range covers different fastening designs, materials, and application needs.
Factory Manufacturing & Custom Support
With in-house manufacturing, 200+ automated machines, and an annual production capacity of 2 billion+ pieces, RivetFast supports bulk orders, repeat supply, and drawing-based customization.
Request a Quote for Tri-Fold Blind Rivets
Contact us with your required size, material, and order quantity—we will reply within 24 hours.
No complete specifications? No problem. Send us what you have and we’ll help confirm the requirements.
FAQ – Tri-Fold Blind Rivets
Q1:What makes Tri-Fold Blind Rivets different from standard blind rivets?
Tri-Fold Blind Rivets expand into three separate sections on the blind side, providing superior load distribution and preventing pull-through in thin or soft materials, which standard rivets cannot achieve.
Q2:Can Tri-Fold Blind Rivets be used with plastics and composite panels?
Yes. Their three-fold expansion design is ideal for soft and brittle materials, including plastics, fiberglass, and composite sheets.
Q3:Are Large Flange Open-End Blind Rivets an alternative?
In some applications, Large Flange Open-End Blind Rivets can be used for added front-side bearing surface. The choice depends on material type, thickness, and load requirements.
Q4:What materials are available for Tri-Fold Blind Rivets?
Common combinations include Aluminum/Steel, Aluminum/Stainless Steel, Steel/Steel, and Stainless Steel/Stainless Steel.
Q5:What installation tools are recommended?
Manual, pneumatic, or battery-powered blind rivet tools compatible with the rivet diameter and grip range are recommended for consistent installation.
This product is part of RivetFast’s Blind Rivets product range and is manufactured to meet industrial fastening requirements.
