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, M16 x 1.5 x 35mm, D38 | UJEN DEVELOPMENT CO., LTD.

Self-locking indexing technology keeps moving parts securely in place. If indexing plungers are your go-to for secure positioning, Our new pull knob can add style and comfort. With four head shapes—concave, flat, convex, dotted—and color ring plus color disc in 7 shades each, the knob accommodates brand identity or user visibility. Taiwanese CNC craftsmanship aligns with mold excellence to sustain exact tolerances, while oyster shell or wood fiber options aid in plastic reduction. Ergonomic refinements reduce operator strain, and ISO9001 oversight confirms consistent output. This knob seamlessly adapts to industries from sports equipment and specialized machinery to automotive, aerospace, and medical devices, offering B2B solutions that balance visual appeal with reliable performance.

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Spring loaded pull pin, Indexing plunger, Pop pin

Indexing plunger M16xP1.5x35mm Appearance

Spring Pull Pin with Star Knob, M16 x 1.5 x 35mm, D38 - Indexing plunger M16xP1.5x35mm Appearance
  • Spring Pull Pin with Star Knob, M16 x 1.5 x 35mm, D38 - Indexing plunger M16xP1.5x35mm 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, M16 x 1.5 x 35mm, D38

PNK170-3816350808

Spring loaded pull pin, Indexing plunger, Pop pin

Self-locking indexing technology keeps moving parts securely in place. If indexing plungers are your go-to for secure positioning, Our new pull knob can add style and comfort. With four head shapes—concave, flat, convex, dotted—and color ring plus color disc in 7 shades each, the knob accommodates brand identity or user visibility. Taiwanese CNC craftsmanship aligns with mold excellence to sustain exact tolerances, while oyster shell or wood fiber options aid in plastic reduction. Ergonomic refinements reduce operator strain, and ISO9001 oversight confirms consistent output. This knob seamlessly adapts to industries from sports equipment and specialized machinery to automotive, aerospace, and medical devices, offering B2B solutions that balance visual appeal with reliable performance.

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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
  • M16 x 1.5
Thread Material
  • Steel
Screw Length(mm/inch)
  • 35 / 1.38
Plunger Diameter(mm)
  • 8
Metal Finishing
  • zinc plated with trivalent
External Diameter(mm)
  • 37~40
External Height(mm)
  • 29~32
External Material
  • PA6+GF
External Shape
  • Star
Gallery
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FAQ
What is UJEN's core business?

UJEN specializes in the innovative design and manufacturing of hand knob screws and related hardware accessories. With over forty years of extensive experience,...

Can you give specific examples of innovation in UJEN's clamping knob screws?

Our innovation goes beyond the design of clamping knob screws, extending to technological improvements and material applications. For instance, our hand...

What role does customization play in UJEN's business?

UJEN understands the diversity of market demands; hence, we provide comprehensive customization services ranging from material selection, sizing, to surface...

How does UJEN ensure high product quality?

Quality is the lifeline of UJEN. From the selection of raw materials to production process control, every step is strictly executed according to international...

Why do UJEN's spring plungers stand out in the market?

Our spring plungers stand out not only due to their high quality and innovative design but also because of our deep understanding of customer needs and our rapid...


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Spring Pull Pin with Star Knob, M16 x 1.5 x 35mm, D38 | 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.