S-95635A579 5/16"-18 x 2" Tamper-Resistant Hex-Drive Stainless Steel Button Head Screws

Key Features & Benefits at a Glance

• Enhanced tamper resistance with specialized hex drive design to prevent unauthorized access in security-sensitive installations
• Superior corrosion protection through 18-8 stainless steel construction and passivated surface treatment for extended service life
• Precision thread engagement with Class 3A fit ensuring reliable fastening in high-vibration industrial environments
• Optimized mechanical performance delivering 70,000 psi tensile strength and Rockwell B70 hardness for demanding applications
• Secure rounded head profile providing smooth finished appearance while maintaining structural integrity
• Regulatory compliance assurance meeting RoHS 3 and REACH standards for global industrial deployment
• Versatile partial threading allowing precise clamping force control across various material thicknesses

Professional Applications & Engineering Value

Engineered for critical security applications, these 5/16"-18 UNC rounded head screws address the fundamental need for tamper-resistant fastening in public infrastructure, industrial machinery, and electronic enclosures. The 18-8 stainless steel material combined with passivated finish creates a robust barrier against corrosive elements, significantly extending maintenance intervals in harsh environments. The tamper-resistant hex drive system provides an essential security layer where standard fasteners would pose vulnerability risks. With coarse thread spacing and Class 3A thread fit, these screws deliver rapid installation and reliable performance in high-vibration settings, while the partially threaded design enables precise joint compression control across varying material thicknesses commonly encountered in industrial assembly operations.

Specification Summary & Compliance

Manufactured to precise dimensional standards with Class 3A thread fit and UNC thread form ensuring interchangeability and reliable performance. The 2" length with minimum 1-1/8" thread length provides optimal engagement across standard material thicknesses. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations guarantees environmental responsibility and global market acceptance. Mechanical properties include verified 70,000 psi tensile strength and Rockwell B70 hardness for consistent performance in demanding industrial applications.