S-95635A602 3/8"-16 x 1 1/4" Tamper-Resistant Hex-Drive Stainless Steel Button Head Screws

Key Features & Benefits at a Glance

• Superior tamper resistance with specialized hex drive requiring matching security bits, preventing unauthorized access in public or high-security installations
• Exceptional corrosion resistance through 18-8 stainless steel construction and passivated surface treatment, ensuring long-term reliability in harsh environments
• Maximum thread engagement with Class 3A precision fit and full threading, providing superior vibration resistance and load distribution
• High-strength performance delivering 70,000 psi tensile strength and Rockwell B70 hardness for demanding industrial applications
• Optimized installation with rounded button head profile that eliminates sharp edges while maintaining low-profile appearance
• Regulatory compliance meeting RoHS 3 and REACH environmental standards for global manufacturing applications
• Reliable coarse threading with UNC 3/8"-16 specification enabling quick assembly and reduced cross-threading risks

Professional Applications & Engineering Value

This tamper-resistant button head screw addresses critical security and durability challenges across multiple industries. The 18-8 stainless steel composition combined with passivated finish creates a robust barrier against corrosion, making it ideal for outdoor equipment, marine applications, and chemical processing facilities where moisture and corrosive elements are prevalent. The tamper-resistant hex drive system provides essential security for public infrastructure, electrical enclosures, transportation equipment, and access panels where vandalism or unauthorized tampering poses significant risks. With its Class 3A thread fit and coarse UNC threading, this fastener ensures rapid installation while maintaining precise tolerances for vibration-prone assemblies. The fully threaded design maximizes clamping force distribution, while the rounded button head offers a finished appearance without sharp edges, enhancing both safety and aesthetics in visible applications.

Specification Summary & Compliance

This security fastener maintains Class 3A thread fit precision per UNC standards with 3/8"-16 coarse threading and full threading along the 1-1/4" length. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring hazardous substance restriction adherence. The mechanical properties include 70,000 psi tensile strength and Rockwell B70 hardness, supporting heavy-duty fastening requirements across industrial applications.