HARFINGTON Push Fit Ball Nose Spring Plunger M12x1.5 6mm Return Knob

Description

Product Overview

The HARFINGTON Push Fit Ball Nose Spring Plunger is engineered for precision and durability in demanding industrial environments. Featuring a standard M12x1.5 thread length of 20 mm (0.79 in) and a 6 mm (0.24 in) pin diameter, this plunger delivers fine‑tuned positioning that designers and technicians rely on for accurate indexing. The return knob is forged from high‑grade carbon steel, a material known for its superior hardness, wear resistance, and ability to withstand harsh chemicals. A blackened surface treatment further protects the steel from rust, extending the service life of the component. Compact dimensions—measuring just 5.51 × 3.94 × 0.98 in and weighing 1.44 oz—make the plunger easy to carry and store, while its lightweight construction does not compromise strength.

Usage

This spring plunger is a versatile accessory for a wide range of machinery and tooling applications. It excels in telescopic lock pin systems, where rapid insertion and removal of the pin are essential for adjusting workpiece positions. The push‑fit ball nose design enables users to engage or disengage the plunger with a simple twist of the return knob, eliminating the need for additional tools. Common use cases include aligning components in CNC machines, securing fixtures on assembly lines, and fine‑adjusting positions in hydraulic presses. Its robust carbon‑steel construction makes it suitable for environments with high vibration, temperature fluctuations, and exposure to oils or coolants. Whether you are a machine shop technician, a maintenance engineer, or a production line supervisor, this plunger provides reliable performance for both routine adjustments and critical setup operations.

Why Choose Us

Choosing the HARFINGTON Push Fit Ball Nose Spring Plunger means selecting a product backed by rigorous quality control and a reputation for engineering excellence. Each unit undergoes a multi‑stage inspection process that verifies thread accuracy, pin straightness, and surface finish quality. The carbon‑steel material is sourced from certified suppliers, ensuring consistent hardness levels that meet or exceed industry standards. Our blackened coating is applied using a controlled oxidation process that guarantees uniform coverage and long‑term corrosion protection. In addition to the product itself, HARFINGTON offers responsive technical support and a straightforward warranty policy, giving customers confidence that any issues will be addressed promptly. This commitment to quality, combined with the plunger’s functional advantages, makes it a preferred choice for professionals seeking dependable work‑holding solutions.

Key Features

• Precise M12x1.5 thread and 6 mm pin enable fine‑tuned positioning for exact alignment.
• Carbon‑steel construction with blackened finish provides superior corrosion resistance and durability.
• Compact, lightweight design makes the plunger easy to transport and install in tight spaces.
• Push‑fit ball nose mechanism allows quick, tool‑free insertion and removal for efficient workflow.
• Dedicated HARFINGTON customer support ensures fast assistance and reliable after‑sales service.

FAQ

What thread size does this plunger use?

The plunger uses a standard M12x1.5 thread, which is compatible with most industrial equipment that requires a 12 mm diameter thread with a 1.5 mm pitch.

Can the plunger be used in high‑temperature environments?

Yes. The carbon‑steel material retains its mechanical properties at elevated temperatures, making the plunger suitable for applications where heat exposure is a factor.

How does the blackened finish protect the plunger?

The blackened coating creates a barrier that reduces oxidation and rust formation, extending the lifespan of the plunger even when exposed to moisture, oils, or chemicals.

Is the plunger compatible with existing lock‑pin systems?

Absolutely. Its standard thread and pin dimensions are designed to integrate seamlessly with most telescopic lock‑pin assemblies used in machining centers, assembly fixtures, and other work‑holding devices.

What warranty does HARFINGTON provide?

HARFINGTON offers a one‑year limited warranty covering manufacturing defects, backed by responsive technical support to address any performance concerns.