Description
Product Overview
The HARFINGTON 30‑piece brass ball point spring plunger set is engineered for precision and durability in demanding mechanical environments. Each plunger is crafted from high‑grade brass, offering excellent corrosion resistance and a smooth surface finish that reduces wear over time. The set includes three size variations—2 mm, 3 mm, and 4 mm body diameters—with corresponding lengths of 3 mm, 4 mm, and 5 mm, providing flexibility for a wide range of applications. The overall lengths of 3.4 mm, 4.8 mm, and 6 mm ensure a compact profile while delivering reliable spring force within an elasticity range of 5 N and above. The step‑free design eliminates abrupt transitions, allowing for quick and accurate positioning without the need for additional tools. This combination of material quality, precise dimensions, and thoughtful engineering makes the plunger set a trusted component for mechanical devices, tooling fixtures, automation machinery, and furniture drawer mechanisms.
![[Product front view showing all components]](https://www.timelessbuy.store/wp-content/uploads/2026/07/b18f4c6ecd3246f8a45033ac408f06e5.jpg)
Usage
These brass ball point spring plungers are ideal for professionals who require consistent pressure and exact positioning in a variety of settings. In mechanical equipment, they serve as reliable actuators for valve control, cam mechanisms, and precision alignment tasks. Tooling fixtures benefit from the plungers’ ability to hold workpieces securely while allowing easy release when needed. Automation machinery, such as robotic arms and CNC machines, utilizes the plungers for repeatable motion control, ensuring high‑speed operation with minimal downtime. Furniture applications include drawer slides and cabinet hinges, where the plungers provide smooth, silent operation and long‑term durability. The set’s compact size makes it suitable for tight spaces, and the brass construction ensures that the components remain functional even in humid or corrosive environments.
Why Choose Us
Choosing HARFINGTON means selecting a brand committed to quality and performance. Each plunger undergoes a rigorous precision casting process followed by polishing to achieve a surface finish that minimizes friction and wear. The brass alloy is selected for its balance of strength and corrosion resistance, guaranteeing that the plungers maintain their functional integrity over extended service life. Our step‑free design reduces installation time and eliminates the need for specialized tools, allowing technicians to focus on productivity. Additionally, HARFINGTON provides comprehensive after‑sales support, including technical assistance and a responsive warranty program, ensuring that customers receive the help they need throughout the product lifecycle.
Key Features
- High‑grade brass construction delivers superior corrosion resistance and long‑term durability.
- Step‑free design enables quick, accurate positioning without additional tools.
- Three size options (2 mm, 3 mm, 4 mm) provide flexibility for diverse mechanical and furniture applications.
- Compact overall length ensures easy integration into tight spaces and complex assemblies.
- Dedicated HARFINGTON customer support and warranty for peace of mind.
FAQ
What material are the plungers made from?
The plungers are made from high‑quality brass, which offers excellent corrosion resistance and wear resistance, making them suitable for long‑term use in various environments.
How do I install the spring plungers?
Installation is straightforward: simply press the plunger into the designated hole until it seats securely. The step‑free design ensures a smooth fit without the need for additional tools.
Can these plungers be used in furniture applications?
Yes, the plungers are ideal for furniture drawer mechanisms and cabinet hardware, providing smooth operation and reliable positioning.
What is the elasticity range of the spring?
The spring provides an elasticity range starting at 5 N, offering sufficient force for most positioning and pressure applications.
Is there a warranty or support available?
HARFINGTON offers a comprehensive warranty and responsive technical support to assist with any installation or performance questions.




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