Flat Plastic Thumb Knob Screw (Nut) | Secure Positioning with Robust Indexing Plungers for Accurate Component Placement

Low-Profile Thumb Screws｜Curved Surface Design × Ergonomic Fit × Sleek Performance manufacturer. In space-limited assemblies where fasteners must remain discreet and unobtrusive, flat plastic thumb knob screws provide a low-profile solution without sacrificing usability. The curved top surface improves finger contact and control, allowing comfortable manual tightening even with minimal thickness—making this type of low-profile thumb knob screw suitable for compact equipment and visually sensitive product designs. UJEN is a high-quality Flat Plastic Thumb Knob Screw (Nut), Hand screw, hand nut, knob screw, thumb knob, plastic knob, adjustable handle, grip knob, indexing plunger manufacturer from Taiwan since 1994. UJEN Development Co., Ltd., with over 45 years of expertise, specializes in manufacturing precision hand screws, knob screws, plastic knobs, adjustable handles, and indexing plungers. As an ISO 9001:2015 certified company, we offer custom solutions and professional mold-making capabilities to enhance product functionality and brand value. Our commitment to quality and innovation ensures we meet the specific needs of our customers in various industries. UJEN is a leading manufacturer of high-quality hand screws in the screw parts industry. With over 40 years of expertise in plastic injection mold development, we have specialized in crafting precision rotary knobs and handles. We offer technical consulting services and customized design solutions to provide full-service from design to production.