S-91870A243 10-24 x 5/8" 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 secure environments
• Superior corrosion protection through 18-8 stainless steel construction and passivated surface treatment
• Exceptional mechanical strength delivering 70,000 psi tensile strength and Rockwell B70 hardness for demanding applications
• Precision thread engagement with Class 3A UNC coarse threads ensuring reliable fastening performance
• Optimal flush mounting featuring standard 82° countersink angle and flat head design for seamless surface integration
• Full-threaded coverage along the 5/8" length providing maximum grip and load distribution
• Regulatory compliance assurance meeting ASME B18.3 standards and environmental regulations including RoHS 3 and REACH

Professional Applications & Engineering Value

These 10-24 UNC flat head tamper-resistant Torx screws address critical security and durability challenges across multiple industries. The 18-8 stainless steel composition with passivated finish provides exceptional resistance to corrosion and chemical exposure, making them ideal for outdoor equipment, marine applications, and harsh industrial environments. The T25 tamper-resistant drive system prevents unauthorized tampering in public infrastructure, electrical enclosures, and security systems. With Class 3A thread fit and coarse threading, these fasteners ensure quick installation and reliable performance in vibration-prone applications. The fully threaded design maximizes engagement strength while the 82° countersink allows for flush mounting in precision assemblies. These screws deliver engineered security solutions for OEM manufacturing, maintenance operations, and critical infrastructure projects where both tamper resistance and environmental durability are paramount.

Specification Summary & Compliance

This 10-24 UNC flat head screw features precision Class 3A thread fit with coarse thread spacing, ensuring optimal engagement and vibration resistance. Manufactured to ASME B18.3 specifications, the fastener delivers consistent dimensional accuracy and performance reliability. The product maintains compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, confirming adherence to strict substance restriction guidelines. The combination of 70,000 psi tensile strength and Rockwell B70 hardness provides mechanical performance assurance for industrial applications requiring both security and durability.