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.

Spring Pull Pin with Star Knob, M12 x 28mm, D27 | Achieve Ergonomic Efficiency with Adjustable Handles for Machinery

A flexible indexing plunger that supports fast line changeovers in B2B settings. To modernize pin or screw-based locking setups, UJEN has crafted a new pull knob featuring concave, flat, convex, or dotted head styles, along with a color ring and color disc in 7 hues each. Our CNC lathe approach, combined with precision mold proficiency, ensures robust durability. For eco targets, choose plastics infused with oyster shell or wood fiber. We integrate ergonomic considerations to ease heavy-duty or repetitive use, and ISO9001 certification guarantees uniform output across big or small orders. Ideal for sports equipment, automotive assembly, medical appliances, and beyond, this knob underscores how Taiwanese manufacturing can unify performance and custom design. UJEN is an ISO 9001 certification Spring Pull Pin with Star Knob, M12 x 28mm, D27, Spring loaded pull pin, 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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Spring loaded pull pin, Indexing plunger, Pop pin | Enhance Your Equipment with Durable Knob Screws for Easy Adjustment"

Indexing plunger M12x28mm Appearance | Customizable knob screws from Taiwan

Spring Pull Pin with Star Knob, M12 x 28mm, D27 - Indexing plunger M12x28mm Appearance
  • Spring Pull Pin with Star Knob, M12 x 28mm, D27 - Indexing plunger M12x28mm 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.

Spring Pull Pin with Star Knob, M12 x 28mm, D27

PNK170-271228N0606

Spring loaded pull pin, Indexing plunger, Pop pin

A flexible indexing plunger that supports fast line changeovers in B2B settings. To modernize pin or screw-based locking setups, UJEN has crafted a new pull knob featuring concave, flat, convex, or dotted head styles, along with a color ring and color disc in 7 hues each. Our CNC lathe approach, combined with precision mold proficiency, ensures robust durability. For eco targets, choose plastics infused with oyster shell or wood fiber. We integrate ergonomic considerations to ease heavy-duty or repetitive use, and ISO9001 certification guarantees uniform output across big or small orders. Ideal for sports equipment, automotive assembly, medical appliances, and beyond, this knob underscores how Taiwanese manufacturing can unify performance and custom design.

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Function

UJEN Spring Pull Pins are ideal for applications requiring frequent adjustment and quick fastening. Simply pull the top knob to disengage the indexing pin, adjust components to the desired position, and release the knob—built-in spring action automatically reinserts the pin for secure, accurate positioning.

UJEN Spring Pull Pins feature a threaded locking design, allowing you to pre-tighten the pin using a wrench for enhanced stability. Widely used across industries including fitness equipment, medical devices, industrial machinery, and furniture hardware, UJEN pull pins improve your product's competitiveness and ease of use.

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 Spring Pull Pin
Thread Size
  • M12
Thread Material
  • Steel
Screw Length(mm/inch)
  • 28 / 1.10
Plunger Diameter(mm)
  • 6
Metal Finishing
  • zinc plated with trivalent
External Diameter(mm)
  • 25~28
External Height(mm)
  • 21~24
External Material
  • PA6+GF
External Shape
  • Star
Gallery
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Spring Pull Pin with Star Knob, M12 x 28mm, D27 | Achieve Ergonomic Efficiency with Adjustable Handles for Machinery

Based in Taiwan since 1994, UJEN DEVELOPMENT CO., LTD. expertise in manufacturing high-quality Spring Pull Pin with Star Knob, M12 x 28mm, D27, 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.