S-91035A330 6-32 x 1/2" ASTM A581, ASTM A582 Captive Panel Screws

Key Features & Benefits at a Glance

• Enhanced manual grip with knurled round head design for easy installation and removal without tools
• Superior corrosion resistance from 18-8 stainless steel construction in demanding industrial environments
• Secure panel retention through partially threaded shank preventing accidental disassembly
• Precision thread engagement with Class 2A UNC coarse threads ensuring reliable fastening performance
• Time-saving installation using slotted drive compatibility with standard screwdrivers
• Regulatory compliance confidence meeting ASTM A581, RoHS 3, and REACH standards for global applications
• Optimized length selection at 1/2" for versatile panel thickness accommodation

Professional Applications & Engineering Value

Engineered for captive panel applications in industrial equipment, electronic enclosures, and machinery access panels, this 6-32 UNC thumb screw solves critical assembly challenges. The 18-8 stainless steel construction provides exceptional resistance to rust and chemical exposure, while the knurled head texture delivers secure grip even with gloved hands. The partially threaded design maintains permanent panel attachment while allowing repeated access, eliminating lost hardware in vibration-prone environments. With coarse UNC threading and Class 2A thread fit, installation remains swift and reliable across multiple removal cycles, making it ideal for maintenance-heavy industrial settings where tool-less operation and durability are paramount.

Specification Summary & Compliance

This captive panel screw features precision 6-32 UNC coarse threads with Class 2A thread fit tolerance for consistent engagement. Manufacturing complies with ASTM A581/A582 specifications for quality assurance. The product is fully RoHS 3 (2015/863/EU) compliant and REACH (EC 1907/2006) compliant for international regulatory requirements, containing no restricted substances per the latest SVHC listing.