S-91870A762 3/8"-16 x 5/8" ASME B18.3 Tamper-Resistant Torx Stainless Steel Flat Head Screws

Key Features & Benefits at a Glance

• Enhanced tamper resistance with T45 Torx drive prevents unauthorized access in high-security applications
• Superior corrosion protection through 18-8 stainless steel construction and passivated surface treatment
• Precision thread engagement with Class 3A fit ensures reliable fastening in demanding environments
• Optimized flush mounting with 82° countersink angle and flat head design for seamless surface integration
• Exceptional mechanical strength delivering 70,000 psi tensile strength and Rockwell B70 hardness
• Industry-standard compliance meeting ASME B18.3 specifications for consistent performance
• Environmental responsibility through RoHS 3 and REACH compliance for sustainable operations

Professional Applications & Engineering Value

This 3/8"-16 UNC flat head tamper-resistant Torx screw delivers critical security and reliability for industrial applications where unauthorized access prevention is paramount. The combination of 18-8 stainless steel material and passivated finish provides exceptional resistance to corrosion in harsh environments, while the T45 tamper-resistant drive ensures only authorized personnel can perform maintenance or adjustments. The fully threaded coarse pitch design with Class 3A fit guarantees maximum holding power in metal assemblies, electrical enclosures, and public infrastructure. The 82° countersink angle allows for perfectly flush installation in panels and machinery, eliminating protrusions that could compromise safety or aesthetics. Engineered to withstand vibration and heavy loads, these security screws are ideal for transportation equipment, industrial machinery, and access control systems requiring durable, tamper-proof fastening solutions.

Specification Summary & Compliance

This fastener maintains precision Class 3A thread fit with UNC coarse threading for optimal engagement. Manufacturing adheres to ASME B18.3 standards for dimensional accuracy and performance consistency. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industries. Mechanical properties include 70,000 psi tensile strength and Rockwell B70 hardness for reliable performance in demanding applications.