RS PRO Steel Captive Nut No.6 Thread Zinc Plated Spring Steel 525-133

The RS PRO 525-133 Steel Captive Nut is a specialized fastener ideal for attaching machine screws to thin or otherwise inaccessible materials. Featuring a No.6 thread size, this captive nut is constructed from high-quality spring steel and finished with clear passivated zinc plating for enhanced corrosion resistance, making it suitable for use in both indoor and outdoor environments.

With compatibility for panel thicknesses ranging from 0.5 mm to 1.6 mm, its compact design (11.1 mm length and 16.6 mm width) facilitates installation where space constraints are critical. These captive U nuts, also known as spire clips, are engineered to retain their shape reliably through extended use, ensuring secure fastening in a variety of applications.

Commonly used in setups such as server racks, control panels, signage installations, lighting fixtures, and anywhere regular access or component replacement is required, the RS PRO captive nut simplifies maintenance and modification without compromising fastening integrity. The spring steel construction provides both toughness and elasticity, allowing for repeatable performance across many cycles.

By incorporating zinc plating, the nut is protected against rust and other environmental damage, making it suitable for commercial, industrial, and manufacturing environments. The clear passivated finish ensures lasting performance by resisting corrosion and supporting long-term usability.

This product is most valuable in the assembly and maintenance of control panels, industrial machinery, racks, thin metal sheets, and situations where the back of the installation surface is not accessible. It enables rapid mounting and removal of panels or devices, supporting efficient servicing and upgrades within mechanical, HVAC, manufacturing, and electrical applications.

Explore additional industrial fastening solutions in the Captive Nuts range from RS PRO to meet diverse engineering requirements.