S-91870A826 10-32 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 design to prevent unauthorized access in secure installations
• Superior corrosion resistance through 18-8 stainless steel construction and passivated surface treatment
• Precise thread engagement with Class 3A UNF fine threads ensuring reliable fastening in critical applications
• High mechanical strength delivering 70,000 psi tensile strength and Rockwell B70 hardness for demanding environments
• Optimal flush mounting with standard 82° countersink angle and flat head design for smooth surface finishes
• Full regulatory compliance meeting ASME B18.3 standards and environmental regulations including RoHS 3 and REACH
• Complete thread coverage with fully threaded 3/8" length for maximum grip strength in thin materials

Professional Applications & Engineering Value

These 10-32 UNF flat head screws with tamper-resistant Torx drive provide engineered security solutions for industrial applications where unauthorized access prevention is critical. The 18-8 stainless steel construction combined with passivated finish offers exceptional resistance to corrosion and chemical exposure, making them ideal for harsh environments including outdoor equipment, marine applications, and chemical processing facilities. The Class 3A fine thread specification ensures precise fitment and vibration resistance in machinery, electronic enclosures, and security panels. With their right-hand thread direction and standard flat head profile, these fasteners deliver reliable performance in applications requiring flush mounting while maintaining the structural integrity needed for high-stress industrial fastening requirements.

Specification Summary & Compliance

This 10-32 UNF flat head screw features precision Class 3A thread fit with fine thread spacing and right-hand thread direction. Manufacturing complies with ASME B18.3 specifications, ensuring dimensional accuracy and performance reliability. The product fully meets RoHS 3 (2015/863/EU) compliance standards and REACH (EC 1907/2006) regulations, confirming environmental responsibility and material safety. Thread diameter measures 0.19" with standard 82° countersink angle, providing optimal seating in prepared surfaces while maintaining the specified tensile strength of 70,000 psi and Rockwell B70 hardness throughout the fastener's service life.