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.

Purchase 1/4-20 | Elevate Functionality with High-Performance Plastic Knobs for Various Applications

UJEN Development Co., Ltd., with over 45 years of expertise, specializes in 1/4-20 manufacturing and 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.

Advanced Search

1/4-20 Searched | Elevate Functionality with High-Performance Plastic Knobs for Various Applications

Reliable screw parts with plastic injection molding

Search for 1/4-20

  • Display:
Result 1 - 12 of 1289
Three Lobe Hand Knob Nut, 1/4, D48
Three Lobe Hand Knob Nut, 1/4, D48

Colorful clamping knob can be mass produced. Stylable and color-matched Three lobe nut 1/4,The...

Three Lobe Hand Knob Screw, 1/4 x 10mm, Chamfered End, D48
Three Lobe Hand Knob Screw, 1/4 x 10mm, Chamfered End, D48

Colorful clamping knob can be mass produced. The body of the knob and the top circle can be shaped...

Three Lobe Hand Knob Screw, 1/4 x 15mm, Chamfered End, D48
Three Lobe Hand Knob Screw, 1/4 x 15mm, Chamfered End, D48

Colorful clamping knob can be mass produced. The body of the knob and the top circle can be shaped...

Three Lobe Hand Knob Screw, 1/4 x 20mm, Chamfered End, D48
Three Lobe Hand Knob Screw, 1/4 x 20mm, Chamfered End, D48

Colorful clamping knob can be mass produced. The body of the knob and the top circle can be shaped...

Three Lobe Hand Knob Screw, 1/4 x 25mm, Chamfered End, D48
Three Lobe Hand Knob Screw, 1/4 x 25mm, Chamfered End, D48

Colorful clamping knob can be mass produced. The body of the knob and the top circle can be shaped...

Three Lobe Hand Knob Screw, 1/4 x 30mm, Chamfered End, D48
Three Lobe Hand Knob Screw, 1/4 x 30mm, Chamfered End, D48

Colorful clamping knob can be mass produced. The body of the knob and the top circle can be shaped...

Three Lobe Hand Knob Screw, 1/4 x 35mm, Chamfered End, D48
Three Lobe Hand Knob Screw, 1/4 x 35mm, Chamfered End, D48

Colorful clamping knob can be mass produced. The body of the knob and the top circle can be shaped...

Three Lobe Hand Knob Screw, 1/4 x 40mm, Chamfered End, D48
Three Lobe Hand Knob Screw, 1/4 x 40mm, Chamfered End, D48

Colorful clamping knob can be mass produced. The knob head is available in a variety of innovative...

Three Lobe Hand Knob Screw, 1/4 x 1/2, D48
Three Lobe Hand Knob Screw, 1/4 x 1/2, D48

Colorful clamping knob can be mass produced. The contact bottom of the knob is made of nylon...

Three Lobe Hand Knob Screw, 1/4 x 3/4, D48
Three Lobe Hand Knob Screw, 1/4 x 3/4, D48

Colorful clamping knob can be mass produced. The plastic head has a matte texture like a Scandinavian...

Three Lobe Hand Knob Screw, 1/4 x 1, D48
Three Lobe Hand Knob Screw, 1/4 x 1, D48

Colorful clamping knob can be mass produced. The plastic head has a matte texture like a Scandinavian...

Three Lobe Hand Knob Screw, 1/4 x 1-1/4, D48
Three Lobe Hand Knob Screw, 1/4 x 1-1/4, D48

Colorful clamping knob can be mass produced. The plastic head has a matte texture like a Scandinavian...

Result 1 - 12 of 1289

1/4-20 | Maximize Precision with Top-Quality Hand Screws for Industrial Use

Based in Taiwan since 1994, UJEN DEVELOPMENT CO., LTD. expertise in manufacturing high-quality 1/4-20, 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.