S-91870A238 10-24 x 3/8" ASME B18.3 Tamper-Resistant Torx Stainless Steel Flat Head Screws

Key Features & Benefits at a Glance

• Enhanced tamper-resistance with T25 Torx drive prevents unauthorized access in public or high-security environments
• Superior corrosion resistance through 18-8 stainless steel construction and passivated finish for extended service life in harsh conditions
• Maximum thread engagement with fully threaded design ensures secure fastening across the entire length
• Precise flush mounting with standard 82° countersink angle for smooth, professional-looking installations
• Exceptional mechanical strength delivering 70,000 psi tensile strength and Rockwell B70 hardness for demanding applications
• Reliable thread performance with Class 3A fit providing consistent, vibration-resistant connections
• Regulatory compliance assurance meeting ASME B18.3, RoHS 3, and REACH standards for quality and environmental safety

Professional Applications & Engineering Value

These 10-24 UNC flat head screws with tamper-resistant Torx drive address critical security and reliability challenges in industrial settings. The 18-8 stainless steel construction combined with passivated finish provides exceptional resistance to corrosion, making them ideal for outdoor equipment, marine applications, and chemical processing environments where moisture and corrosive elements are present. The T25 drive system offers superior torque transmission while deterring tampering in public infrastructure, electronic enclosures, and maintenance access panels. The Class 3A thread fit ensures precise engagement with mating components, reducing the risk of vibration-induced loosening in machinery, transportation equipment, and assembly line applications. These security fasteners maintain structural integrity while preventing unauthorized disassembly in sensitive installations.

Specification Summary & Compliance

Manufactured to exacting standards, these screws feature 10-24 UNC coarse threads with Class 3A thread fit for superior dimensional accuracy and consistent performance. The 3/8" length and fully threaded design provide maximum fastening capability. Compliance includes ASME B18.3 specifications for dimensional consistency, RoHS 3 (2015/863/EU) for restricted substance compliance, and REACH (EC 1907/2006) regulations for chemical safety. The 82° countersink angle ensures proper seating in standard chamfered holes for flush mounting applications.