S-95966A659 1/4"-28 x 5/8" Captive Panel Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction for long-lasting performance in harsh industrial environments
• Precise thread engagement through Class 3A UNF fine threading ensures secure, vibration-resistant fastening in panel applications
• High tensile strength rating of 70,000 psi provides reliable load-bearing capacity for demanding mechanical assemblies
• Secure installation and removal with 3/16" hex drive socket combined with knurled head texture for superior grip and torque application
• Optimized panel retention through partially threaded design prevents complete disengagement during service and maintenance
• Regulatory compliance assurance with RoHS 3 and REACH compliance meeting international environmental and safety standards
• Right-hand thread configuration with fine spacing delivers consistent clamping force and prevents loosening under vibration

Professional Applications & Engineering Value

This 18-8 stainless steel captive panel screw addresses critical challenges in industrial assembly where vibration resistance and corrosion protection are paramount. The Class 3A UNF fine threading provides superior thread engagement in metal panels and electronic enclosures, preventing back-out in high-vibration environments. The knurled head with hex drive ensures positive torque application during installation while maintaining accessibility in confined spaces. As a partially threaded captive panel screw, it prevents complete disassembly during maintenance cycles, reducing downtime in manufacturing equipment, telecommunications infrastructure, and transportation systems. The combination of 70,000 psi tensile strength and regulatory compliance makes it ideal for OEM applications requiring both mechanical reliability and environmental responsibility.

Specification Summary & Compliance

This captive panel screw features precision 1/4"-28 UNF Class 3A threading with fine thread spacing and right-hand thread direction. The partially threaded design provides optimal panel retention with a thread length of 1/4". Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety standards are met. The 3/16" hex drive and knurled head texture facilitate secure installation while maintaining dimensional accuracy within specified tolerances.