Overview
Threaded rod butterfly fasteners are mechanical clamps designed to secure threaded rods in place without requiring tools. Their butterfly-shaped wings allow for manual tightening, making them ideal for temporary or adjustable installations in construction and industrial settings. These fasteners are widely used in scaffolding, concrete formwork, and modular structures due to their simplicity and reusability. They are available in various materials, including carbon steel for general use and stainless steel for corrosive environments.
Structure and Working Principle
The fastener consists of a central nut with threaded grooves that match the rod's threads, flanked by two wing-like handles. When the wings are rotated, the nut moves along the rod, clamping it against a surface or another component. This design eliminates the need for wrenches or spanners, enabling rapid assembly and disassembly. The wings also provide leverage, ensuring sufficient torque for a secure hold while allowing easy adjustments.
Key Features
Tool-free operation is the standout feature, reducing labor time and equipment dependency. The butterfly wings are ergonomically shaped for comfortable grip, even with gloved hands. Corrosion-resistant variants (e.g., galvanized or stainless steel) extend lifespan in humid or outdoor environments. Some models include serrated edges or rubber coatings to enhance grip and prevent slippage.
Application Areas
Primary applications include scaffolding systems, where they secure vertical and horizontal rods. In concrete formwork, they help align and stabilize rebar or framework panels. Industrial uses include modular furniture assembly, stage rigging, and temporary electrical conduit supports. Their adjustability makes them suitable for projects requiring frequent reconfiguration.
Maintenance and Precautions
Regularly inspect fasteners for thread wear, cracks, or deformation, which can compromise holding strength. Clean threads of debris to ensure smooth operation. Avoid exceeding recommended torque limits, as over-tightening may strip threads or damage the rod. For critical loads, pair with locking washers or secondary fasteners for added security.
B2B Procurement Guide
Bulk purchases typically offer cost savings, with discounts available for orders exceeding 1,000 units. Verify material certifications (e.g., ASTM standards) for compliance with project requirements. Lead times vary by supplier but are generally short for standard sizes. Customizable options (e.g., non-standard thread pitches) may require longer production cycles. Request samples to test compatibility before large-scale orders.
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