Durable and reliable - Made from high-quality stainless steel, this butterfly hinge clamp delivers long-lasting durability and dependable performance during silk screen printing. Safe and stable - The wide-wing thumb screw provides a secure, stable grip that firmly clamps the screen frame and prevents movement or slipping. Versatile use - Designed to secure your screen frame on a table or work surface, these hinge clamps are essential tools for both hobbyists and professional screen printers. Precise registration - The positive locking feature ensures precise registration, enabling accurate alignment and consistent print results for your silk screen projects. Use scenarios - Set up a frame for a small-batch silk screen print on fabric or paper on a workbench. - Secure frames during exposure, printing, or washout to maintain alignment and prevent frame shift. - In a busy studio or workshop, quickly mount and lock frames for multiple colors or sizes to streamline workflow.