S-94375A520 8-32 x 1/2" ASTM A581, ASTM A582 Captive Panel Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance from 18-8 stainless steel construction, ideal for harsh industrial environments
• Precise captive panel retention with partial threading design prevents accidental removal during maintenance
• Reliable thread engagement with Class 2A fit ensures consistent performance in repetitive assembly operations
• Easy installation and removal through standard slotted drive compatibility with common tools
• Optimized panel mounting performance with coarse UNC threading providing excellent grip in various materials
• Regulatory compliance assurance meeting RoHS 3 and REACH standards for global manufacturing applications
• Dimensional consistency with ASTM A581 specification compliance for predictable performance across batches

Professional Applications & Engineering Value

Engineered for demanding industrial environments, this 8-32 UNC captive panel screw delivers exceptional value in electronic enclosures, control panels, and machinery assemblies. The 18-8 stainless steel construction provides inherent corrosion resistance, eliminating premature failure in humid or chemically aggressive settings. The partially threaded design creates a secure captive feature that maintains panel alignment while allowing repeated access without thread damage. With coarse thread spacing and Class 2A thread fit, installation becomes more efficient with reduced cross-threading risks. The slotted drive style ensures compatibility with standard tools, while the rounded head offers a finished appearance suitable for visible applications. This combination of features addresses common challenges in panel mounting, including vibration resistance, maintenance accessibility, and long-term reliability.

Specification Summary & Compliance

This captive panel screw maintains precise dimensional accuracy with Class 2A thread fit per UNC standards and 1/2" length with 7/32" thread length. Manufacturing follows ASTM A581 specification for consistent quality and performance. The product demonstrates full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental responsibility and global market acceptance. Right-hand thread direction and coarse thread spacing provide optimal performance in panel mounting applications across industrial sectors.