From design intent to scalable production — faster, cleaner, and with fewer trade-offs | 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 Engineering Partner for Integrated Fastener Development

From design intent to scalable production — faster, cleaner, and with fewer trade-offs

When product development cycles shorten and supply chains grow more complex, fastening components are no longer “just parts.” Knob screws, spring plungers, and adjustable handles directly affect assembly speed, ergonomics, safety, and long-term reliability. This is where integrated development matters.
UJEN supports OEM and product teams through a development-driven manufacturing model—combining design support, tooling, material selection, and production execution under one coordinated workflow. The result is faster validation, fewer handoff errors, and predictable scale-up.


Common Challenges When Sourcing Fastening Components

During early development and pre-production stages, buyers and engineers often face constraints that slow progress:

  • Catalog parts that meet specs but limit customization
  • Premium brands with strong design language but higher cost and long lead times
  • Rigid processes that make engineering changes difficult
  • High MOQs that increase risk during validation and pilot runs

These constraints become more visible when working with global brands where pricing structures, customization windows, or communication layers are optimized for scale—not agility.

Why Development Teams Choose UJEN

As a Taiwan-based fastener OEM operating under ISO 9001 systems, UJEN balances manufacturing discipline with development flexibility. We work directly with engineers and product teams to reduce friction between design intent and production reality.

  • Flexible pricing logic: Tiered quotations aligned with development and scale-up phases
  • Shorter lead times: Hot-selling standard parts ship in 1–5 days; custom parts supported by rapid prototyping
  • High customizability: Materials, dimensions, colors, and mechanisms adapted to real applications
  • Engineer-direct support: Bilingual technical communication covering DFM, tolerances, and ergonomics

Core development focus includes knob screws, spring pull pins (indexing plungers), and adjustable clamping handles—engineered for repeatable precision across industrial systems.

Built for Real Applications, Not Just Specifications

UJEN’s integrated capability spans mold design and fabrication, plastic injection, CNC machining, and composite material development—all within a traceable, ISO 9001-certified framework.

From fitness equipment and medical devices to automation modules and modular frames, we tune fastening function and ergonomics to actual usage scenarios. Sustainable material options, including recycled oyster-shell and wood-fiber composites, are also available for environmentally driven programs.

Accelerating Market Entry Through Integrated Development

Partnering with UJEN allows development teams to validate faster, control cost earlier, and move smoothly from prototype to mass production. Our role is not to replace your design intent—but to help it survive real manufacturing conditions.

UJEN is not positioned as a catalog alternative, but as a pragmatic development partner for teams who value speed, adaptability, and long-term manufacturability.


UJEN: Your Engineering Partner for Integrated Fastener Development | 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.