Self-Clinching Bolt
Products Description
A self-clinching bolt is a functional fastener that is press-fitted into a thin sheet metal without welding or nuts. Its working principle utilizes a special toothed or locking structure beneath the screw head to embed into the base metal under pressure, causing controlled plastic flow in the base metal. This achieves:
Permanent anti-rotation
High pull-out resistance
Reusable threads
Once press-fitted, the screw becomes part of the sheet metal structure, allowing for direct threaded connections during subsequent assembly and maintenance.
Core Product Advantages
More Suitable for Thin Sheets
Unlike welding or tapping, press-fit screws have lower requirements for base material thickness, allowing for stable application to thin or medium-thickness sheet metal Clinching Screw, and are less prone to warping or thermal deformation.
Higher Structural Stability
The press-fit structure uses metal cold flow for locking, providing more stable anti-loosening performance compared to spot welding or riveting, making Push-In Clinching Screw suitable for equipment with frequent vibration or long-term operation.
Significantly Improved Assembly Efficiency
No post-weld cleaning or secondary processing is required; press-fitting is completed in one step, greatly shortening the production cycle and reducing labor and rework costs.
Superior Appearance and Consistency
After press-fitting, the back of the sheet metal remains flat, suitable for chassis, housings, and modular structures where appearance and assembly space are critical.
Material Advantages: Matching Optimal Genes for "Implantation" and "Service"
Stainless Steel Series
We primarily use 303 or 304 stainless steel. 303 stainless steel, due to the addition of sulfur, has superior machinability, making it suitable for manufacturing screws with complex shapes. 304 stainless steel offers better corrosion resistance and versatility. The inherent high strength and corrosion resistance of stainless steel ensure long-term service of the implanted threaded interface in various environments.
Carbon Steel Series
We select high-quality carbon steel, which undergoes surface hardening treatment to provide extremely high surface hardness (≥HRC50) to ensure no deformation during the riveting process, while maintaining sufficient core toughness to prevent brittle fracture. The surface is typically galvanized or Dacromet-treated to provide excellent rust resistance.
Aluminum Alloy Series
To meet the extreme lightweight requirements of aerospace and high-end electronic equipment, we offer 6061 or 7075 aluminum alloy riveting screws. Their strength-to-weight ratio is extremely high, and their coefficient of thermal expansion is similar to that of aluminum alloy sheets, maintaining connection stability under varying temperature conditions.
Design Advantages: Deep Reflection of Engineering Thinking
Stress Optimization Design
The tapered screw head design has been validated through over 2000 stress analyses to achieve optimal stress distribution.
01
Deformation-Free Installation
The press-fit process ensures no deformation of the thin sheet metal during installation, maintaining structural integrity.
02
Ergonomic Installation
Self-Clinching Threaded Fastener Optimized screw profile provides a larger torque contact surface, reducing installation fatigue.
03
Universal Interface
Compatible with standard tools, eliminating the need for specialized equipment and reducing procurement complexity for the Self-Clinching Stud.
04
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