S-91900A842 10-32 x 5/8" Tamper-Resistant Torx Stainless Steel Button Head Screws

Key Features & Benefits at a Glance

• Tamper-resistant Torx T25 drive prevents unauthorized access and tool slippage for enhanced security applications
• 18-8 stainless steel construction provides excellent corrosion resistance and durability in demanding environments
• Class 3A thread fit ensures superior precision and reliable fastening in critical assemblies
• Passivated surface finish enhances corrosion protection while maintaining material integrity
• 70,000 psi tensile strength delivers exceptional load-bearing capacity for high-stress applications
• Rockwell B70 hardness maintains thread integrity and prevents stripping during repeated installations
• Fully threaded design provides maximum engagement and holding power across the entire fastener length

Professional Applications & Engineering Value

These 10-32 UNF Class 3A rounded head screws with tamper-resistant Torx T25 drive are engineered for applications where security, reliability, and environmental resistance are paramount. The 18-8 stainless steel material combined with passivated finish provides superior protection against corrosion in industrial, marine, and outdoor environments. The fine thread spacing and Class 3A precision ensure vibration-resistant fastening in electronic enclosures, machinery guards, and security panels. The rounded button head profile offers a low-profile appearance while the fully threaded design maximizes pull-out strength. These security screws are ideal for preventing unauthorized access in public facilities, transportation equipment, and sensitive installations where tampering must be deterred without compromising mechanical performance.

Specification Summary & Compliance

This 10-32 UNF screw features Class 3A thread fit for precision applications with a right-hand thread direction and fine thread spacing. The fastener meets RoHS 3 (2015/863/EU) compliance and REACH (EC 1907/2006) regulations, ensuring environmental responsibility. Manufacturing specifications include a 0.361" head diameter, 5/8" length, and fully threaded configuration with Rockwell B70 hardness and 70,000 psi tensile strength for reliable performance in industrial fastening applications.