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.

I Shape Thumb Knob, 1/4 x 20mm, Chamfered End, D25 | Achieve Ergonomic Efficiency with Adjustable Handles for Machinery

Colorful grip knob can be mass produced. Metal surface is trivalent white zinc, with stable corrosion resistance. The threads are made of Grade II standard threads. The design of guide angle at the end of the screw makes the assembly smoother and reduce the abrasion to the lock parts. Matte touch design. No scratching, no sharp edges and burrs.
We are ISO9001:2015 certified and also provide customized services, welcome to contact us. Easy finger-tight Wing screw 1/4x20mm, The small knob is the first choice for small spaces and can be tightened with fingers, thus saving time and effort.
A variety of innovative and vibrant colors are available on the exposed areas to enhance corporate product recognition. Enhance the value and unique style of your products. ROHS & REACH compliant, made of wear-resistant nylon + glass fiber material to increase service life. UJEN is an ISO 9001 certification I Shape Thumb Knob, 1/4 x 20mm, Chamfered End, D25, Mini plastic knob screw, Clamping knob, Thumb knob, Tighten knob bolt 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.

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Mini plastic knob screw, Clamping knob, Thumb knob, Tighten knob bolt | Enhance Your Equipment with Durable Knob Screws for Easy Adjustment"

Straight knob 1/4x20mm chamfered screw Diameter25 | Customizable knob screws from Taiwan

I Shape Thumb Knob, 1/4 x 20mm, Chamfered End, D25 - Straight knob 1/4x20mm chamfered screw Diameter25
  • I Shape Thumb Knob, 1/4 x 20mm, Chamfered End, D25 - Straight knob 1/4x20mm chamfered screw Diameter25
  • The konb can be made in macaroon color which developed by UJEN
  • The konb also can be made in customized color

I Shape Thumb Knob, 1/4 x 20mm, Chamfered End, D25

K210-25U420

Mini plastic knob screw, Clamping knob, Thumb knob, Tighten knob bolt

Colorful grip knob can be mass produced. Metal surface is trivalent white zinc, with stable corrosion resistance. The threads are made of Grade II standard threads. The design of guide angle at the end of the screw makes the assembly smoother and reduce the abrasion to the lock parts. Matte touch design. No scratching, no sharp edges and burrs.

We are ISO9001:2015 certified and also provide customized services, welcome to contact us. Easy finger-tight Wing screw 1/4x20mm, The small knob is the first choice for small spaces and can be tightened with fingers, thus saving time and effort.

A variety of innovative and vibrant colors are available on the exposed areas to enhance corporate product recognition. Enhance the value and unique style of your products. ROHS & REACH compliant, made of wear-resistant nylon + glass fiber material to increase service life.

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Function

Small adjust knob is ideal for quick-fasten. It can be tightened and disassembled by a hand, saving time and effort. It is suitable for
the locations that are often adjusted.

Features
  • RoHS REACH compliant.
  • Thread is class 2.
  • Flame-proof, heat-resistant, anti-UV properties.
  • The head knob has a matte finish.
  • The head knob does not hurt hands, no sharp angles or burrs.
  • The knob is easy to tight with a hand. the best design of beauty and grip.
  • The metal is shiny and detailed.
  • Zinc-plated metal, stable corrosion resistance.
  • The chamfered front end of the screw makes assembly smoother and reduces wear on the mating end face.
Dimensions
Dimensioning
Thread Type
  • Chamfered screw
Thread Size
  • 1/4-20
Thread Material
  • Steel
Screw Length(mm/inch)
  • 20 / 0.79
Metal Finishing
  • zinc plated with trivalent
External Diameter(mm)
  • 25~28
External Height(mm)
  • 13~16
External Material
  • PA6+GF
External Shape
  • Wing
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I Shape Thumb Knob, 1/4 x 20mm, Chamfered End, D25 | Achieve Ergonomic Efficiency with Adjustable Handles for Machinery

Based in Taiwan since 1994, UJEN DEVELOPMENT CO., LTD. expertise in manufacturing high-quality I Shape Thumb Knob, 1/4 x 20mm, Chamfered End, D25, 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.