S-91870A732 10-24 x 3/8" ASME B18.3 Tamper-Resistant Torx Plus Stainless Steel Flat Head Screws

Key Features & Benefits at a Glance

• Enhanced tamper resistance with specialized Torx Plus IPR25 drive requiring matching tools, preventing unauthorized access in secure environments
• Superior corrosion protection through 18-8 stainless steel construction and passivated surface treatment for extended service life in harsh conditions
• Exceptional mechanical strength delivering 70,000 psi tensile strength and Rockwell B70 hardness for reliable performance in high-stress applications
• Precise Class 3A thread fit ensuring tight tolerances and secure fastening in critical assemblies requiring vibration resistance
• Optimized flat head design with standard profile and 82° countersink angle for flush mounting and clean aesthetic finish
• Full threading capability providing maximum grip length and uniform load distribution across the entire fastener
• Regulatory compliance assurance meeting ASME B18.3 specifications while being RoHS 3 and REACH compliant for global industrial use

Professional Applications & Engineering Value

Engineered for high-security industrial applications, this 10-24 UNC flat head tamper-resistant screw addresses critical challenges in access control and vandalism prevention. The 18-8 stainless steel composition combined with passivated finish provides exceptional resistance to corrosion and chemical exposure, making it ideal for outdoor equipment, marine environments, and chemical processing facilities. The Tamper-Resistant Torx Plus drive system (IPR25) ensures that only authorized personnel with specialized tools can install or remove these security screws, protecting valuable assets in public infrastructure, transportation systems, and electronic enclosures. The Class 3A thread fit with coarse thread spacing delivers superior holding power in materials where vibration loosening is a concern, while the flat head profile maintains surface integrity in precision assemblies.

Specification Summary & Compliance

This fastener maintains precision Class 3A thread fit according to UNC thread standards with 10-24 thread size and right-hand thread direction. Manufacturing compliance includes ASME B18.3 specifications for dimensional accuracy and performance. The product meets RoHS 3 (2015/863/EU) compliance and REACH (EC 1907/2006) regulations regarding substance restrictions, ensuring environmental responsibility and global market acceptance. Critical dimensions include 3/8" length, 0.411" head diameter, and 82° countersink angle for proper installation in standard applications.