Maximize the functionality and safeguard your electrical connections with the IFM E12542 Protective Cap. Designed for use with M12 thread sizes, this cap offers a reliable seal to prevent contamination and moisture from reaching sensitive electrical components. Ideal for industrial applications, it ensures a secure connection and prolongs the lifespan of your wiring. Each pack contains eight caps, allowing for versatile usage across various projects or as a convenient backup supply. The caps are from a respected brand, IFM, known for their quality and durability in the realm of electrical protection. Incorporate these protective caps into your maintenance routine to maintain the integrity of your electrical connections. 4 packages of 4 is what you are getting.