UJEN: Your Trusted International Partner for Precision Knob Fasteners and Mechanical Components | Elevate Functionality with High-Performance Plastic Knobs for Various Applications

UJEN provides a comprehensive, one-stop service ranging from design assistance, prototyping, and pilot production to mass supply. We ensure a fast and transparent process with flexible support for all your development needs, serving as a strong partner for medium-to-large brands and engineering teams. | Durable adjustable handles for equipment | UJEN

UJEN provides a comprehensive, one-stop service ranging from design assistance, prototyping, and pilot production to mass supply. We ensure a fast and transparent process with flexible support for all your development needs, serving as a strong partner for medium-to-large brands and engineering teams.

UJEN: Your Trusted International Partner for Precision Knob Fasteners and Mechanical Components

With over 40 years of precision manufacturing expertise, UJEN is based in Taiwan and delivers high-quality components on par with leading global brands from Germany, Japan, the U.S., and Italy. We are dedicated to serving mid-to-large manufacturers, OEM/ODM firms, and engineering teams, offering integrated services from design support to prototyping, small-batch trials, and mass production. Our flexible solutions feature low minimum order quantities, full customization, and fast response times. Core products include knob screws, spring plungers, and adjustable handles, all essential components widely used in industrial automation and machinery applications.


Facing challenges in sourcing high-quality components?

  • Is MISUMI too costly with limited customization?
  • Is Elesa+Ganter elegant but overpriced due to brand markup?
  • Is KIPP too rigid in process to accommodate rapid project changes?
  • Does Carr Lane demand high MOQs and offer little flexibility?

UJEN offers a smarter alternative—cost-effective, responsive, and highly adaptable to fast-paced manufacturing needs.

As a well-established Taiwan-based manufacturer, UJEN provides component quality that rivals global giants. We deliver one-stop service tailored for bulk buyers, engineering leads, and product developers, ensuring agility through small-volume flexibility, deep customization, and engineer-direct support. Our product focus—knob screws, spring plungers, and adjustable handles—serves diverse industrial needs with reliable precision.


Why global companies are turning to UJEN: it's not just about cost—it's about control and efficiency.

  • Flexible Pricing: Tiered quotations based on quantity help manage development budgets effectively.
  • Faster Lead Times: Hot-selling standard parts ship within 1–5 days; custom parts benefit from rapid prototyping.
  • High Customizability: Materials, dimensions, colors, and mechanical structures can be adapted to meet unique application needs. Shared mold options available to cut costs.
  • Real-Time Technical Support: Speak directly with our bilingual engineers for design optimization and revisions.


From fitness equipment to medical devices and automated production lines, UJEN enhances your product value.

Our capabilities include CNC machining, mold design and fabrication, plastic injection, and advanced composite development—all ISO 9001 certified. Whether for a single prototype or mass production, we offer scalable solutions.

In high-demand use cases like knob screws, spring plungers, and adjustable handles, we optimize functionality and ergonomics to suit your needs.

We also offer sustainable material innovation—eco-friendly composites made from recycled oyster shells and wood fibers.


Global Supplier Comparison: Why UJEN is a Strategic Advantage

BrandQualityCustomizationMOQPricingLead TimeTech Support
MISUMIHighLowNoneFixed high pricing1–6 daysDocumentation only
Elesa+GanterHighMediumHighPremium pricingVaries by regionDistributor-based support
KIPPHighMediumLimitedLow discount marginUnpredictableComplex communication
Carr LaneHighMediumHighRigid pricing7–14 daysDocumentation only
UJENHighHighNone for projectsTiered, flexible1–5 days for hot-selling items + rapid prototypingDirect bilingual engineers

UJEN is more than a component supplier—we accelerate your market entry.

We help global buyers prototype faster, reduce costs, and move swiftly from design to full production. Choosing UJEN means choosing efficiency, flexibility, and long-term competitiveness.

UJEN: Your Trusted International Partner for Precision Knob Fasteners and Mechanical Components | Maximize Precision with Top-Quality Hand Screws for Industrial Use

Based in Taiwan since 1994, UJEN DEVELOPMENT CO., LTD. expertise in manufacturing high-quality hand screws, knob screws, adjustable handles, grip knobs, and indexing plungers. Their commitment to customization and precision ensures each component, from hand screws to indexing plungers, meets rigorous standards. This dedication positions UJEN as a leader in supplying durable and reliable industrial components to global markets.

UJEN Development Co., Ltd. is a leading manufacturer of precision-engineered hand screws, knob screws, plastic knobs, adjustable handles, and indexing plungers for a variety of industrial needs. Our 45-year legacy, combined with ISO 9001:2015 certification, underscores our commitment to quality, innovation, and customer satisfaction. Specializing in custom solutions, we excel in professional moldmaking, enhancing equipment functionality across industries.

UJEN has been offering customers high-quality hand screws for industrial machinery since 1994, both with advanced technology and 47 years of experiences, UJEN ensures each customer's demands are met.