Spring loaded pull pin, Indexing plunger, Pop pin

Fixed pull pin M16x35mm Appearance

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 - Fixed pull pin M16x35mm 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 Plastic Clamping Knob, M16 x 35mm, D55

PYK170-551635N0808

Spring loaded pull pin, Indexing plunger, Pop pin

High-grade steel and a reliable spring coil deliver long-lasting performance. Drawing on four decades of mold-making experience, UJEN specializes in CNC lathe–fabricated indexing plungers and pins for B2B applications. Our solutions improve multi-position locking in specialized machinery, automotive projects, and even medical or semiconductor equipment. If sustainability is a priority, we can add wood fiber or oyster shell to the plastic knob, curbing your carbon footprint. ISO9001–certified procedures guide production, ensuring both large runs and custom tasks receive consistent quality. By adopting ergonomic designs, we help staff in industries like sports equipment and aerospace reduce physical strain during frequent adjustments. UJEN stands for robust locking efficiency made in Taiwan.

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
  • M16
Thread Material
  • Steel
Screw Length(mm/inch)
  • 35 / 1.38
Plunger Diameter(mm)
  • 8
Metal Finishing
  • zinc plated with trivalent
External Diameter(mm)
  • 53~56
External Height(mm)
  • 45~48
External Material
  • PA6+GF
External Shape
  • Star
Gallery
Related Products
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 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
PYK100-481228N0606

Engineered for firm retention, this spring-actuated plunger simplifies component adjustments....

Details Add to List
Spring Pull Pin with Circle Plastic Clamping Knob, M16 x 35mm, D65 - Clamping Knob spring pull pin  M16x35mm Appearance
Spring Pull Pin with Circle Plastic Clamping Knob, M16 x 35mm, D65
PYK100-651635N0808

Precision-crafted to minimize wear, this spring plunger resists loosening under vibration....

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, 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
FAQ
What measures does UJEN take regarding environmental protection?

Environmental protection is an integral part of our operation. UJEN is committed to reducing the environmental impact of our production processes, strictly...

In which fields are UJEN's handle screws applicable?

Our knob screws are widely used in various fields, including mechanical manufacturing, medical equipment, sports equipment, monitor stands, fitness equipment,...

How does UJEN handle customer feedback and after-sales issues?

Customer satisfaction is our top priority. We have a dedicated customer service team responsible for addressing customer feedback and after-sales issues,...

What makes UJEN's research and development in plastic head screws distinctive?

Our plastic head screw nuts R&D team consists of industry-experienced engineers and designers, possessing forward-thinking design concepts and deep technical...

What is UJEN's global market strategy?

As a company with an international outlook, UJEN actively expands into the global market, establishing stable cooperative relationships with clients in countries...


Spring Pull Pin with Star Plastic Clamping Knob, M16 x 35mm, D55 | Custom Hand Screws, Knobs & Handles Manufacturer | UJEN

UJEN's tool-free fastening solutions and custom adjustable handles are specifically designed for fitness equipment requiring frequent user adjustments. Our 45-year expertise in hand screw manufacturing ensures reliable, comfortable, and aesthetically pleasing products that enhance your equipment's market appeal. Contact us for customized solutions that streamline your production process.

UJEN's core strength lies in transforming customer concepts into market-ready products through innovative design-to-production services, technical consulting, and engineering solutions. Our tool-free fastening innovations and customization capabilities enable manufacturers to differentiate their products while reducing assembly time and improving end-user experience. Partner with UJEN to elevate your product competitiveness with premium hand screws and custom knob solutions backed by four decades of manufacturing excellence and commitment to quality craftsmanship.