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.

Small Indexing Plunger with Circle Plastic Clamping Knob, M12 x 1.5 x 30mm, D29, pin8 | Achieve Ergonomic Efficiency with Adjustable Handles for Machinery

Its low-profile head sits flush, reducing the risk of snagging or damage. Small automotive parts or medical devices often require finer plungers, so Our line covers M8, M10, M12, M16, plus 4–10mm pin diameters. The knob goes beyond a ring, offering four appearances, plus 7 color rings/discs for brand identity; wood fiber or oyster shell plastic fosters eco-friendly design. Taiwan CNC and mold processes guarantee high tolerances and lasting performance. ISO9001-based workflows handle large or small custom orders for medical, sports, automotive-aerospace, and semiconductor B2B usage with ease. UJEN is an ISO 9001 certification Small Indexing Plunger with Circle Plastic Clamping Knob, M12 x 1.5 x 30mm, D29, pin8, Mini spring loaded pull pin, Tiny indexing plunger, Pop pin 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 spring loaded pull pin, Tiny indexing plunger, Pop pin | Enhance Your Equipment with Durable Knob Screws for Easy Adjustment"

Mini pull pin M12xP1.5x30mm PIN8mm Appearance | Customizable knob screws from Taiwan

Small Indexing Plunger with Circle Plastic Clamping Knob, M12 x 1.5 x 30mm, D29, pin8 - Mini pull pin M12xP1.5x30mm PIN8mm Appearance
  • Small Indexing Plunger with Circle Plastic Clamping Knob, M12 x 1.5 x 30mm, D29, pin8 - Mini pull pin M12xP1.5x30mm PIN8mm Appearance
  • Four different shapes (concave, plane, convex and dot) with shaped knobs
  • 49 color combinations for customers to choose from at top of the pull pin
  • Indexing plunger can match the unique macaroon color system developed by UJEN, or customize the color to meet your needs.

Small Indexing Plunger with Circle Plastic Clamping Knob, M12 x 1.5 x 30mm, D29, pin8

PSK300-2912300808

Mini spring loaded pull pin, Tiny indexing plunger, Pop pin

Its low-profile head sits flush, reducing the risk of snagging or damage. Small automotive parts or medical devices often require finer plungers, so Our line covers M8, M10, M12, M16, plus 4–10mm pin diameters. The knob goes beyond a ring, offering four appearances, plus 7 color rings/discs for brand identity; wood fiber or oyster shell plastic fosters eco-friendly design. Taiwan CNC and mold processes guarantee high tolerances and lasting performance. ISO9001-based workflows handle large or small custom orders for medical, sports, automotive-aerospace, and semiconductor B2B usage with ease.

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Function

UJEN Mini Spring Pull Pins are ideal for applications requiring compact size, frequent adjustment, and quick fastening. Simply pull the compact knob upward to release the pin from its hole, adjust the component to your desired position, and release—the internal spring immediately re-engages the pin for precise positioning.

Additionally, this pull pin features a special knob design allowing manual rotation to tighten screws directly by hand, ensuring stable clamping and preventing component vibration or loosening without needing tools. Perfectly suited for fitness equipment, medical devices, mechanical assemblies, and furniture hardware.

Features
  • RoHS REACH compliant.
  • Pull and release process smoother.
  • 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 fitting tolerance between metal parts is small, reducing sway.
  • The rounded corner of the Plunger's front end increases smoothness of insertion.
  • The chamfered front end of the screw makes assembly smoother and reduces wear on the mating end face.
Dimensions
Dimensional drawing of Small Indexing Plunger with Clamping Knob
Thread Size
  • M12 x 1.5
Thread Material
  • Steel
Screw Length(mm/inch)
  • 30 / 1.18
Plunger Diameter(mm)
  • 8
Metal Finishing
  • zinc plated with trivalent
External Diameter(mm)
  • 29~32
External Height(mm)
  • 29~32
External Material
  • PA6+GF
External Shape
  • Circle
Gallery
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Small Indexing Plunger with Circle Plastic Clamping Knob, M12 x 1.5 x 30mm, D29, pin8 | Achieve Ergonomic Efficiency with Adjustable Handles for Machinery

Based in Taiwan since 1994, UJEN DEVELOPMENT CO., LTD. expertise in manufacturing high-quality Small Indexing Plunger with Circle Plastic Clamping Knob, M12 x 1.5 x 30mm, D29, pin8, 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.