Spring loaded pull pin, Indexing plunger, Pop pin | Enhance Your Equipment with Durable Knob Screws for Easy Adjustment"

Clamping Knob spring pull pin M12x28mm Appearance | Customizable knob screws from Taiwan

Spring Pull Pin with Circle Plastic Clamping Knob, M12 x 28mm, D48 - Clamping Knob spring pull pin  M12x28mm Appearance
  • Spring Pull Pin with Circle Plastic Clamping Knob, M12 x 28mm, D48 - Clamping Knob spring pull pin  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 Circle Plastic Clamping Knob, M12 x 28mm, D48

PYK100-481228N0606

Spring loaded pull pin, Indexing plunger, Pop pin

Engineered for firm retention, this spring-actuated plunger simplifies component adjustments. Over four decades, UJEN has evolved from precision mold maker to CNC lathe expert, producing robust indexing plungers and pins for B2B clients. From fitness machines and sports equipment to aerospace systems and semiconductor tooling, our solutions deliver reliable, multi-position locking. We also design knobs using materials like wood fiber or oyster shell to minimize plastic. Certified under ISO9001, our Taiwan-based production aligns with your requirements for high-volume manufacturing or specialized customization. By integrating ergonomics into screws (or bolts) and knobs, UJEN ensures user-friendly installations, making your product enhancements both efficient and future-oriented.

Function

UJEN Indexing Pins (Spring Pull Pins) offer an ideal solution for rapid fastening and frequent repositioning of components. Simply pull the top knob to release the pin from the positioning hole, adjust the component to your desired location, and release—built-in spring action instantly re-engages the pin for precise positioning.

Additionally, UJEN indexing pins feature an ergonomic knob design, allowing you to easily tighten the screw manually, securely clamping the component and eliminating vibration or movement, widely used across fitness equipment, industrial machinery, medical devices, and furniture hardware industries.

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 with Clamping Knob
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)
  • 45~48
External Height(mm)
  • 33~36
External Material
  • PA6+GF
External Shape
  • Circle
Gallery
Related ProductsFAQ
Spring Pull Pin with Circle Plastic Clamping Knob, M12 x 1.5 x 28mm, D48 - Clamping Knob spring pull pin  M12xP1.5x28mm Appearance
Spring Pull Pin with Circle Plastic Clamping Knob, M12 x 1.5 x 28mm, D48
PYK100-4812280606

A high-tension spring plunger delivering precise alignment and increased durability. UJEN has harnessed...

Details Add to List
Spring Pull Pin with Star Plastic Clamping Knob, M16 x 1.5 x 35mm, D55 - Fixed pull pin M16xP1.5x35mm Appearance
Spring Pull Pin with Star Plastic Clamping Knob, M16 x 1.5 x 35mm, D55
PYK170-5516350808

A self-contained spring plunger offering straightforward installation and minimal maintenance....

Details Add to List
Spring Pull Pin with Star Plastic Clamping Knob, M12 x 1.5 x 28mm, D56 - Fixed pull pin M12xP1.5x28mm Appearance
Spring Pull Pin with Star Plastic Clamping Knob, M12 x 1.5 x 28mm, D56
PYK180-5612280606

Stable under pressure, this spring locking pin handles frequent engagement with ease. High-accuracy...

Details Add to List
Spring Pull Pin with Star Plastic Clamping Knob, M16 x 35mm, D55 - Fixed pull pin M16x35mm Appearance
Spring Pull Pin with Star Plastic Clamping Knob, M16 x 35mm, D55
PYK170-551635N0808

High-grade steel and a reliable spring coil deliver long-lasting performance. Drawing on four...

Details Add to List
Spring Pull Pin with Star Plastic Clamping Knob, M12 x 28mm, D56 - Fixed pull pin M12x28mm Appearance
Spring Pull Pin with Star Plastic Clamping Knob, M12 x 28mm, D56
PYK180-561228N0606

A consistent spring plunger solution tailored to meet demanding B2B fastening needs. Combining...

Details Add to List

Spring Pull Pin with Circle Plastic Clamping Knob, M12 x 28mm, D48 | 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 Circle Plastic Clamping Knob, M12 x 28mm, D48, 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.