S-91870A726 8-32 x 2" ASME B18.3 Tamper-Resistant Torx Stainless Steel Flat Head Screws

Key Features & Benefits at a Glance

• Enhanced tamper resistance with Torx T20 drive design to prevent unauthorized access in secure applications
• Superior corrosion protection through 18-8 stainless steel construction and passivated surface treatment
• Exceptional mechanical strength with 70,000 psi tensile strength and Rockwell B70 hardness for heavy-duty use
• Precise thread engagement with Class 3A thread fit ensuring reliable fastening in critical assemblies
• Full-threaded design providing maximum grip length and uniform stress distribution
• Standardized dimensions with 82° countersink angle for seamless flush mounting in prepared surfaces
• Regulatory compliance meeting ASME B18.3 specifications and environmental standards for global applications

Professional Applications & Engineering Value

Engineered for high-security applications where tampering prevention is critical, these 8-32 UNC flat head screws deliver reliable performance in demanding industrial environments. The combination of 18-8 stainless steel material and passivated finish provides exceptional resistance to corrosion, moisture, and chemical exposure, making them ideal for outdoor equipment, marine applications, and harsh manufacturing settings. The tamper-resistant Torx T20 drive system ensures only authorized personnel can install or remove these fasteners, while the Class 3A thread fit maintains precise tolerances for vibration-resistant connections. These fully threaded security screws are particularly valuable in public infrastructure, electrical enclosures, and machinery where both security and durability are paramount requirements.

Specification Summary & Compliance

These flat head screws feature 8-32 UNC coarse threads with Class 3A thread fit for superior precision and engagement. Manufacturing complies with ASME B18.3 standards for dimensional accuracy and performance. The fasteners are fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industries. With standardized 82° countersink angle and right-hand thread direction, these screws provide consistent performance in professional applications requiring secure, flush-mounted fastening solutions.