Winged Fastening Pull Pin, Winged locking Indexing Plunger, D31 D35 D39 D44 D49 | Achieve Ergonomic Efficiency with Adjustable Handles for Machinery

The wing pull pin, also known as the dual-wing fastening pin, is engineered for enhanced grip efficiency and structural stability. Compared to traditional round pull pins, its dual-wing design improves directional force and provides a 30% increase in fastening strength—making it ideal for high-frequency manual adjustments where ease and reliability are essential. Typical applications include medical carts, foldable structures, AV mounts, and industrial rails.

UJEN has optimized the wing shape with smooth curves for superior ergonomics and visual refinement. The main body is constructed from PA6 + glass fiber composite for high mechanical strength and long-term durability. The matte surface finish is comfortable to touch and easy to grip. The internal spring mechanism enables consistent, smooth operation without sticking. The default metal shaft uses carbon steel with trivalent zinc plating, and we also offer stainless steel (SUS304), alloy steel, or tool steel options based on your strength requirements.

Multiple stroke lengths, thread sizes, and custom head or body finishes are available. You may also personalize the color, surface treatment, or logo to align with your product design. This component is ideal for hidden mechanisms, unified aesthetics, or assembly-driven applications—offering a smart balance of performance and design detail. UJEN is an ISO 9001 certification Winged Fastening Pull Pin, Winged locking Indexing Plunger, D31 D35 D39 D44 D49, Spring loaded pull pin, Indexing plunger, Pop pin 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.