Sturdy Iron Construction with Plated Finish: Fabricated from high-quality iron metal with a colorful zinc-plated surface treatment, these robust Butterfly Hinge Clamps resist corrosion and maintain reliable performance through repeated use. Wide-Wing Thumbscrew for Firm Frame Fastening: This Screen Printing Metal Hinge Clamp features a wide-wing thumbscrew design that securely fastens screens to frames, ensuring stable positioning during screen printing operations for consistent results. Positive Locking Mechanism for Perfect Registration: Engineered with positive locking functionality, these Silk Screen Printing Butterfly Hinge Clamps provide perfect registration control, allowing precise alignment and repeatable positioning for professional printing quality. Loose Pin Design for Quick Screen Removal: The innovative loose pin construction of the Metal Butterfly Frame Hinge Clamp enables rapid screen removal and replacement, significantly reducing changeover time between printing jobs and improving workflow efficiency. Versatile Mounting for Flat Surfaces: Designed for easy installation on any flat surface, the Screen Printing Hinge Clamp Set provide secure screen fixation for screen printing applications across various workshop setups., Weight: 0.86641668966 Pounds, Manufacturer: samfox