Function

UJEN Safety Indexing Pins (Spring Pull Pins) are designed specifically for frequent repositioning and quick fastening of components. Simply pull the top knob to quickly disengage the pin, adjust the component, and release—the built-in spring immediately returns the pin into its positioning hole for precise re-engagement.

Featuring an innovative visual safety indicator, if the pin is not properly reinserted, a colored indicator on top of the knob pops up, and an orange warning ring around the screw becomes visible, instantly alerting the user to the improper engagement for prompt correction.

Additionally, this safety indexing pin allows manual rotation of the knob for convenient hand-tightening of components, securely preventing vibration and loosening without additional tools. Ideal for fitness equipment, medical devices, industrial machinery, furniture hardware, and beyond, UJEN Safety Pins ensure secure, reliable fastening with added safety assurance.

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.

Thread Size

• M16

Thread Material

• Steel

Screw Length(mm/inch)

• 40 / 1.57

Plunger Diameter(mm)

• 10

Metal Finishing

• zinc plated with trivalent

External Diameter(mm)

• 57~60

External Height(mm)

• 49~52

External Material

• PA6+GF

External Shape

• Hexagon

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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...