UJEN DEVELOPMENT CO., LTD. - UJEN is a manufacturer with 45 years of experience in producing hand screws, offering custom services and professional mold-making capabilities for knobs & handles.

UJEN - Hand Screws & Custom Knob Solutions | 45 Years

UJEN manufactures premium hand screws, custom knobs, and adjustable handles with 45 years expertise. ISO 9001 certified design-to-production solutions for industrial applications.

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Premium Hand Screws and Custom Knob Manufacturing Solutions

Discover UJEN's 45-year legacy of excellence in hand screws, adjustable handles, and tool-free fastening innovations for industrial equipment worldwide.

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New Products Overview - UJEN's latest fastening solutions are designed to offer you better structural performance and smarter design integration.

New Products Overview

Fastening components play a decisive role in how a product is assembled, adjusted, and experienced in real...

Pull Pin Spring Knobs - Indexing pins with a wide variety of functions and sizes are available for you to choose from.

Pull Pin Spring Knobs

Spring pull pins provide fast, tool-free positioning and repeatable alignment for equipment requiring...

Clamping Knob Screw (Nut) - Knob screws

Clamping Knob Screw (Nut)

In applications where components must be secured and adjusted frequently without tools, clamping knob...

Adjustable Handle Screw (Nut) - Adjustable levers screws

Adjustable Handle Screw (Nut)

In applications where components must be tightened repeatedly within limited space, adjustable handle...

Control Knob - Adjusting knob

Control Knob

Control Knobs bridge the interface between users and machines, enabling precise tuning or actuation with...

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How can you reduce assembly time and improve user experience in your fitness equipment without compromising quality?

UJEN's tool-free fastening solutions and custom adjustable handles are specifically designed for fitness equipment requiring frequent user adjustments. Our 45-year expertise in hand screw manufacturing ensures reliable, comfortable, and aesthetically pleasing products that enhance your equipment's market appeal. Contact us for customized solutions that streamline your production process.

UJEN's core strength lies in transforming customer concepts into market-ready products through innovative design-to-production services, technical consulting, and engineering solutions. Our tool-free fastening innovations and customization capabilities enable manufacturers to differentiate their products while reducing assembly time and improving end-user experience. Partner with UJEN to elevate your product competitiveness with premium hand screws and custom knob solutions backed by four decades of manufacturing excellence and commitment to quality craftsmanship.