One-Pull Slotted Step Blind Fastener
Products Description
The One-Pull Slotted Step Blind Fastener is a type of blind mechanical fastener characterized by its ability to secure a connection without requiring access to the back of the workpiece.
The product consists primarily of the following components:
1. Rivet Body
The rivet body serves as the primary connecting element; it undergoes deformation through pulling to create a locking zone, thereby permanently securing two or more parts.
The stepped structural design controls the direction of the rivet body's deformation, ensuring more uniform material expansion during the riveting process and enhancing connection stability.
2. Mandrel
The mandrel provides the necessary pulling force during installation. A specialized riveting tool generates axial tension, causing the rivet body to undergo plastic deformation and form a secure lock.
The optimized mandrel design minimizes the risk of abnormal breakage during installation, thereby improving the stability of the riveting process.
Design Advantage: Deconstructing Complex Stress Distribution
Interference Fit and Anti-Loosening Design
The stepped profile creates a slight interference fit when pressed into the workpiece hole, effectively compensating for drilling tolerances and eliminating clearance-induced movement under dynamic loads for the Structural Slotted Step Pop Rivet.
Protection for Thin Sheets and Composite Materials
The stepped structure acts as a physical stop, preventing excessive setting force from being transferred to the surface of the joined materials; this effectively prevents deformation in thin metal sheets, cracking in plastics, and delamination in carbon fiber composites.
Stem Retention
A unique mechanical locking mechanism securely retains the remaining stem fragment within the rivet body after the break-off, eliminating the risk of equipment short circuits or abnormal noises caused by loose stems falling out due to vibration for the Multi-Step Shank Slotted Blind Rivet.
Application Advantages
Rail Transit and Vehicle Manufacturing
Used for installing suspension systems for train interior panels. Since there is a gap between the skin and the framework-and the reverse side is inaccessible-the fastener's stepped expansion capability perfectly fills the void, preventing noise caused by vibration during vehicle operation for Shoulder Break Stem Rivet.
Electrical Cabinets and Communication Base Stations
When mounting heavy-duty guide rails or power modules onto thin sheet metal, standard self-tapping screws are prone to stripping. This Anti-Corrosion Slotted Step Pop Rivet ensures secure threaded fastening on thin sheet metal, while the slotted head design facilitates easy removal for future maintenance.
Architectural Curtain Walls and Aluminum Panel Installation
Used to secure stiffeners to the back of aluminum panels. The flat, slotted head design ensures a tight fit between the stiffener and the panel with no surface protrusions, maintaining the flatness of the curtain wall.
New Energy Vehicles and Energy Storage Equipment
Suitable for single-sided installation and connection of battery structural components, energy storage systems, and power equipment.
Material Advantages: Comprehensive Alloy Range and Surface Modification
To meet the rigorous demands of diverse global industrial environments, we offer a multi-material portfolio rather than relying solely on steel solutions:
Aerospace-grade Aluminum Alloys (5052/7075 Series): Subjected to solution heat treatment and artificial aging, these alloys achieve exceptional lightweight characteristics while maintaining high shear strength. Surface treatments-such as chemical conversion coating (Alodine) or anodizing-provide superior resistance to salt spray corrosion, making them the preferred choice for aerospace interiors and UAV airframes.
Marine-grade Stainless Steel (A4/316): Engineered for marine engineering, coastal wind power equipment, and chemical processing environments, we utilize a low-carbon, high-nickel-molybdenum alloy formulation. This effectively resists chloride-induced corrosion, ensuring long-term operational stability for fasteners in humid, acidic, or alkaline conditions.
Boron Steel Mandrels: The internal mandrels are manufactured from medium-carbon boron steel. High-frequency quenching enhances core toughness, ensuring the material absorbs massive impact energy during the riveting process without brittle fracture, thereby guaranteeing installation success.
All raw materials are supplied with original manufacturer Material Test Certificates (MTCs). Additionally, we can provide composition analysis and mechanical property test certificates from third-party testing agencies to satisfy ISO 9001 and AS9100D traceability requirements.
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For engineering projects requiring reliable connection performance and efficient assembly solutions, we offer "Flat Head Break Stem Rivet" solutions tailored to your structural designs, material specifications, and application environments; leveraging our professional manufacturing capabilities, we support the entire process-from sample validation to mass production delivery.
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