Description
Product Overview
The HARFINGTON Push Fit Ball Nose Spring Plunger is engineered for precision and durability in demanding industrial environments. Featuring a compact M12x1.5 thread length of 20 mm and a 6 mm pin diameter, this plunger delivers fine‑tuned positioning that meets the exacting standards of modern machinery. Constructed from high‑grade stainless steel, the plunger resists corrosion, wear, and deformation, ensuring a long service life even under continuous exposure to moisture, chemicals, and temperature fluctuations.
Designed with a thin thread profile, the plunger enables users to adjust the insertion depth with exceptional accuracy, facilitating optimal indexing for a wide range of applications. The return knob provides a smooth, tactile feel, allowing quick pull‑out and insertion actions without the need for additional tools. This combination of material quality, precise threading, and ergonomic design makes the plunger an indispensable component for engineers, technicians, and maintenance professionals.
![[Product front view showing all components]](https://www.timelessbuy.store/wp-content/uploads/2026/08/d7aa438afb6541228748d86a5ac6489a.jpg)
Usage
In industrial equipment, the Push Fit Ball Nose Spring Plunger serves as a reliable locking and positioning element for telescopic lock pins, machine tool fixtures, and adjustable jigs. Its compact size and lightweight construction (approximately 1.41 oz) make it easy to carry and install in confined spaces, such as CNC machine tool housings, robotic arms, and assembly line stations.
The plunger excels in environments where rapid reconfiguration is essential. For example, in a machining workshop, operators can swiftly secure workpieces by inserting the pin, then fine‑adjust the position using the thin thread to achieve the exact alignment required for cutting, drilling, or milling operations. Its stainless steel composition also ensures that the plunger remains functional in humid or oily conditions, reducing downtime caused by rust or corrosion.
Beyond traditional manufacturing, the plunger is suitable for engineering prototypes, research labs, and custom equipment where precise, repeatable positioning is critical. Whether used in a test rig for material testing or as part of a modular fixture system, the plunger provides a dependable solution that enhances productivity and safety.
Why Choose Us
HARFINGTON is a recognized brand in the tools and home improvement sector, known for delivering high‑quality components that meet rigorous industry standards. Each Push Fit Ball Nose Spring Plunger undergoes strict quality control procedures, including dimensional verification, hardness testing, and corrosion resistance assessment, to guarantee consistent performance across every unit.
Our commitment to customer satisfaction extends beyond the product itself. We provide comprehensive technical support, detailed installation guides, and responsive after‑sales service to address any questions or concerns. When you choose HARFINGTON, you benefit from a blend of engineering expertise, reliable manufacturing processes, and a dedication to continuous improvement.
Furthermore, the plunger’s design incorporates feedback from seasoned professionals, resulting in a product that balances ease of use with robust functionality. The thin thread, ergonomic return knob, and stainless steel construction are all outcomes of iterative testing and real‑world application, ensuring that the plunger not only meets but exceeds expectations in diverse operational settings.
Key Features
- Compact M12x1.5 thread and 6 mm pin deliver precise positioning for critical applications.
- Stainless steel construction provides superior corrosion resistance and long‑term durability.
- Thin thread design enables fine‑tuning of insertion depth, ensuring optimal indexing.
- Ergonomic return knob allows quick, tool‑free pull‑out and insertion for fast setup.
- Dedicated technical support and after‑sales service guarantee reliable assistance throughout the product lifecycle.
FAQ
What size thread does the plunger use?
The plunger features a metric M12x1.5 thread with a length of 20 mm (0.79 in), providing a secure and adjustable fit for a variety of industrial components.
Is the plunger suitable for high‑temperature environments?
Yes. The stainless steel material is rated for elevated temperatures commonly encountered in machining and manufacturing processes, maintaining its strength and resistance to deformation.
Can the plunger be used with non‑metallic fixtures?
Absolutely. The design’s smooth operation and precise threading make it compatible with plastic, composite, and other non‑metallic fixtures, provided the hole dimensions match the M12x1.5 specification.
How do I ensure proper installation?
Insert the pin by turning the return knob clockwise until the desired depth is reached. The thin thread allows you to fine‑adjust the position, then lock the knob in place. Refer to the included installation guide for detailed steps.
What warranty does HARFINGTON offer?
HARFINGTON provides a one‑year limited warranty covering manufacturing defects. Our customer service team is ready to assist with any warranty claims or technical inquiries.







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