Function

UJEN Mini Spring Pull Pins are ideal for applications requiring compact size, frequent adjustment, and quick fastening. Simply pull the compact knob upward to release the pin from its hole, adjust the component to your desired position, and release—the internal spring immediately re-engages the pin for precise positioning.

Additionally, this pull pin features a special knob design allowing manual rotation to tighten screws directly by hand, ensuring stable clamping and preventing component vibration or loosening without needing tools. Perfectly suited for fitness equipment, medical devices, mechanical assemblies, and furniture hardware.

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

Thread Size

• M8 x 1.0

Thread Material

• Steel

Screw Length(mm/inch)

• 20 / 0.79

Plunger Diameter(mm)

• 4

Metal Finishing

• zinc plated with trivalent

External Diameter(mm)

• 21~24

External Height(mm)

• 21~24

External Material

• PA6+GF

External Shape

• Circle

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FAQ

Does UJEN offer thumb screw samples for evaluation?

Yes, we are more than happy to provide knob screw samples for clients to evaluate and test. We believe that actual product experience can help clients...

How can UJEN ensure its handle screw nuts meet our environmental requirements?

We understand the importance of environmental protection for our clients and society. All UJEN's handle screw nuts strictly adhere to international environmental...

If our requirements change, can UJEN flexibly adjust the order?

We understand that market demands can change, so our production and logistics systems are designed with enough flexibility to accommodate changes in customer...

How does UJEN ensure the continuous innovation and development of new knob screws?

We have a dedicated R&D team responsible for the innovation and development of new knob screws. By continuously exploring the latest technological trends,...

What long-term value does partnering with UJEN offer?

Partnering with UJEN means not only obtaining high-quality spring plungers and other hardware accessories but also represents a long-term partnership....

Are UJEN's hand knob screws and indexing plungers manufactured in Taiwan?

All our handle screws and spring plungers are manufactured in Taiwan. UJEN is committed to local production, which not only supports Taiwan's economic...