S-91035A340 6-32 x 5/8" ASTM A581, ASTM A582 Captive Panel Screws

Key Features & Benefits at a Glance

• Enhanced manual operation with knurled head texture for superior grip and easy hand-tightening without tools
• Corrosion-resistant performance from 18-8 stainless steel construction, ideal for harsh industrial environments
• Secure panel retention with partially threaded design that prevents complete removal and loss
• Quick installation through coarse UNC threads and Class 2A fit ensuring smooth engagement
• Dual drive compatibility featuring both thumb and slotted drive options for versatile application
• Reliable standardization meeting ASTM A581 specifications for consistent quality and performance
• Environmental compliance with RoHS 3 and REACH regulations for safe usage across industries

Professional Applications & Engineering Value

This 6-32 UNC thumb screw delivers critical engineering solutions for captive panel fastening applications where repeated access and reliability are paramount. The 18-8 stainless steel construction provides excellent corrosion resistance in demanding environments like electronics enclosures, industrial machinery, and medical devices. The knurled head offers exceptional torque application without specialized tools, while the partially threaded design prevents accidental disassembly and component loss. With coarse thread spacing and Class 2A thread fit, installation speed and alignment accuracy are significantly improved, reducing assembly time and maintenance costs in high-volume production settings.

Specification Summary & Compliance

This captive panel screw features precision 6-32 UNC coarse threads with Class 2A thread fit for reliable engagement and dimensional accuracy. Manufacturing complies with ASTM A581 specifications for material quality and performance standards. The product meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental compliance requirements, ensuring safe usage across global industrial applications. Key dimensions include 5/8" length, 0.313" head diameter, and 7/32" thread length for consistent panel retention performance.