S-95966A543 1/4"-20 x 1 3/4" Captive Panel Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ensuring long-term reliability in harsh industrial environments.
• Enhanced assembly efficiency through the 3/16" hex drive and knurled head, providing secure grip and easy installation with standard tools.
• Precise thread engagement with Class 3A thread fit, minimizing the risk of cross-threading and ensuring consistent, vibration-resistant connections.
• Optimized panel retention due to the partially threaded design, allowing for secure captive fastening in electronic enclosures and machinery panels.
• High mechanical strength with 70,000 psi tensile strength, supporting heavy-duty applications without failure under stress.
• Reliable coarse threading (UNC) for quick assembly and reduced susceptibility to clogging in dusty or debris-prone settings.
• Environmental compliance with RoHS 3 and REACH regulations, making it safe for use in regulated industries and global markets.

Professional Applications & Engineering Value

This captive panel screw is engineered to address common challenges in industrial assembly, such as panel misalignment and fastener loosening due to vibrations. The 18-8 stainless steel material offers excellent resistance to rust and oxidation, ideal for outdoor equipment or humid conditions. Its partially threaded shank and Class 3A thread fit ensure precise alignment in panel fastening applications, reducing installation time and maintenance needs. The knurled head and hex drive design facilitate tool-free adjustments in tight spaces, while the coarse UNC threading enhances durability in high-vibration environments like automotive or aerospace assemblies. By integrating these features, it delivers consistent performance in electronics, machinery, and enclosures, streamlining production and minimizing downtime.

Specification Summary & Compliance

This screw adheres to UNC thread standards with a Class 3A thread fit for tight tolerances and reliable engagement. Dimensions include a thread size of 1/4"-20, length of 1 3/4", and drive size of 3/16", manufactured to precise length tolerances (-0.04" to 0"). It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and suitability for global industrial use.