Spring loaded pull pin, Indexing plunger, Pop pin

Indexing plunger M12x28mm Appearance

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.

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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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 Knob, M12 x 28mm, D27 | 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.