Flat Head Step Rivet With Slotted Drive
Products Description
Flat Head Step Rivet with Slotted Drive is a special type of rivet manufactured through cold heading, precision turning, and stamping processes.
Its main structure includes:
Flat head drive end
Slotted drive structure
Stepped shaft section
Positioning guide area
Riveting deformation area
Precise positioning between different components is achieved through variations in the stepped dimensions, while permanent connection is achieved through riveting deformation.
Compared to traditional screw connections, this product requires no additional locking components, effectively reducing the number of parts and assembly steps.
Core Functions and Multi-Industry Applications: A Spatial Leap from Rotary Hinges to Precision Electronics
Architectural Hardware and Smart Locks & Hinges
Widely used in high-end door and window hinges, transmission links inside smart fingerprint locks, and electromechanical clutch mechanisms. Slotted Head Step Rivet withstands frequent rotational wear, ensuring that locks can be opened and closed tens of thousands of times without increased clearance or jamming.
Automotive Interior Mechanisms
In space-constrained interior mechanisms such as car seat adjustment rails, sun visor hinges, and glove box damping links, the Flat Head Step Rivet provides a low-cost, high-strength, and vertically space-saving planar hinge solution.
Electronics Enclosures
Used in various industrial control cabinets for spring-loaded door handles, foldable handles, communication base station panel latches, and other structural components requiring single-sided riveting and flexible rotation.
Manufacturing Process: Micron-Level Cold Forging and Precision Refinement Preserving Flow Lines
| Multi-Station Precision Cold Forging | Utilizing a high-speed multi-station cold forging machine, the wire undergoes minute, step-by-step deformation (straightening, pre-forging, stepped forming, head flattening, and slotting blanking). The metal fibers flow continuously along the Flat Head Step Blind Rivet's contour, never being cut. This results in a finished product with tensile and fatigue strength far exceeding that of machined parts. |
| High-Speed Slotting and Burr-Free Blanking | The single-slotting process employs precision blanking combined with micron-level trimming technology, ensuring a flat bottom, clear right angles, and no micro-cracks or blanking burrs. This not only protects the installation tools from damage but also eliminates head cracking caused by stress concentration. |
| Rounding the Stepped Transition | The stepped shoulder at the transition between large and small diameters is the most stress-sensitive area. We add a rolling process after cold heading to reduce the micro-roughness of this area to an extremely low level and form a residual compressive stress layer on the surface, significantly improving the fatigue life of this part. |
| Controlled Atmosphere Heat Treatment | For steel Flat Head Step Break-Stem Rivets, a mesh belt carburizing and quenching furnace is used to complete the phase transformation under a protective atmosphere. Through precise carbon potential control and quenching cooling curves, a smooth transition of the hardness gradient between the nail head and the nail shank is ensured, achieving the ideal state of "hard surface, tough core". |
Design Advantages – Structural Details Designed for High-Volume Assembly
Flat-Head Recessed Design
The top surface of the Flat Head Step Structural Rivet head is flush with or slightly recessed from the plate surface, eliminating protrusion interference and meeting the stringent requirements for surface contour continuity in fluid equipment, handheld panels, and sliding mechanisms.
Anti-rotation and Anti-misalignment Features
The slotted groove acts as an anti-rotation interface after installation. In subsequent processes, when counter-torque is applied with tools, the Slotted Head Step Break-Stem Blind Rivet will not rotate due to accidental force.
Customizable Wide Clamping Range
The axial length of each step can be precisely adjusted according to customer drawings, allowing for customized Slotted Step Break-Stem Rivet lengths for different plate thickness combinations.
Automated Assembly Compatibility
The dimensional design is compatible with standard vibratory feeder feeding and automatic riveting equipment, supporting high-speed cycles in large-scale production lines.
contact us
We not only provide standard fastener manufacturing services, but also Flat Head Step Structural Rivet engineering development based on customers' assembly structures, motion mechanisms, tolerance requirements, and automation production needs. This provides integrated support from sample verification to mass delivery, shortening the development cycle and improving the overall assembly reliability for your project.
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