S-91870A729 12-24 x 1" ASME B18.3 Tamper-Resistant Torx Stainless Steel Flat Head Screws

Key Features & Benefits at a Glance

• Enhanced tamper resistance with T25 Torx drive design to prevent unauthorized access in security-sensitive applications
• Superior corrosion resistance thanks to 18-8 stainless steel construction and passivated surface treatment
• Maximum thread engagement with fully threaded design ensuring superior holding power across the entire fastener length
• Precise Class 3A thread fit delivering reliable, vibration-resistant fastening in demanding industrial environments
• High-strength performance with 70,000 psi tensile strength and Rockwell B70 hardness for heavy-duty applications
• Standard flat head profile with 82° countersink angle for flush mounting and clean aesthetic finish
• Regulatory compliance assurance meeting ASME B18.3 standards and environmental regulations including RoHS 3 and REACH

Professional Applications & Engineering Value

These 12-24 UNC flat head screws with tamper-resistant T25 Torx drive provide engineered solutions for applications where security, corrosion resistance, and reliable performance are critical. The 18-8 stainless steel material combined with passivated finish offers exceptional protection against rust and chemical exposure, making them ideal for outdoor equipment, marine environments, and industrial machinery. The Class 3A thread fit with coarse thread spacing ensures quick installation and superior vibration resistance, while the fully threaded design maximizes load distribution. These industrial fasteners are particularly valuable in security applications, electronic enclosures, and public infrastructure where tamper-proof fastening is essential for safety and asset protection.

Specification Summary & Compliance

This 12-24 UNC flat head screw features precise Class 3A thread fit with coarse thread spacing and right-hand thread direction. Manufacturing specifications comply 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 they meet current industry requirements for hazardous substance restrictions and chemical safety.