RS PRO Stainless Steel Spring Plunger, M3 Thread, 7.5 mm Length, 1.5 mm Ball Diameter 478-743

The RS PRO 478-743 Stainless Steel Spring Plunger is engineered for precise indexing and secure latching functions within demanding industrial, mechanical, and assembly settings. Its robust stainless steel body offers excellent resistance to corrosion, oxidation, and wear, making it ideal for use in harsh or high-humidity environments.

This plunger features a compact M3 thread size and an overall length of 7.5 mm, facilitating seamless integration into fixtures, jigs, positioning devices, and automated equipment. The hardened steel ball, with a 1.5 mm diameter, is retained to provide consistent, low-friction contact against workpieces or datum faces, ensuring repeatable location accuracy and dependable mechanical performance even with frequent cycling.

Designed for versatility, the spring plunger is commonly used in applications such as clamping adjustable elements, setting or locking repeatable positions, indexing moving parts, and latching mechanisms within machines or instrument enclosures. Its standard spring load gives a balanced resistance, optimizing retention without excessive insertion force, while the slotted head enables easy installation or removal using a standard screwdriver.

The temperature endurance up to 250°C expands its eligibility for industrial, laboratory, and maintenance use where elevated ambient temperatures are encountered. Each purchase includes a pack of 5 identical spring plungers, allowing for straightforward stocking, rapid replacement, and parallel use across multiple assemblies.

Precision manufactured and validated for strict industrial requirements, the RS PRO 478-743 M3 Stainless Steel Spring Plunger reliably supports productivity in environments demanding repeatable mechanical performance, robustness, and reliability.

High-grade stainless steel body and ball for resistance to corrosion and wear. M3 metric thread, 7.5 mm overall length fits a wide range of equipment and fixtures. 1.5 mm hardened ball ensures accurate positioning and gentle contact.

Standard spring load for balanced holding force and ease of use. Compatible with engineering assemblies requiring repeatable positioning and latching.

This component is well suited for manufacturing, laboratory, electronics enclosure, machine automation, and general industrial maintenance or assembly applications. For more Spring Plungers and related hardware, explore the Hand Tools section of Industrial Tools & Equipment or browse RS PRO's extensive range of reliable industrial components on EnvMart.