S-91997A214 10-24 x 3/4" ASME B18.3 Sealing Tamper-Resistant Torx Stainless Steel Button Head Screws

Key Features & Benefits at a Glance

• Superior sealing performance with integrated Buna-N rubber O-ring that withstands pressures up to 1500 psi and temperatures from -40° to 225°F, preventing leaks in demanding environments.
• Enhanced tamper resistance through T25 Torx drive design, providing added security against unauthorized access in public or sensitive installations.
• Exceptional corrosion resistance from 18-8 stainless steel construction and passivated finish, ensuring long-term reliability in harsh or outdoor conditions.
• Precise thread engagement with Class 3A UNC coarse threading, delivering secure fastening and vibration resistance in industrial assemblies.
• High tensile strength of 70,000 psi, offering reliable load-bearing capacity for critical applications without failure.
• Broad compliance with ASME B18.3 standards, RoHS, and REACH regulations, ensuring quality and environmental safety for global projects.
• Streamlined installation with a rounded button head profile and fully threaded design, reducing assembly time and improving aesthetic integration.

Professional Applications & Engineering Value

This 10-24 x 3/4" rounded head screw is engineered to address common industrial challenges such as fluid leakage, tampering, and corrosion in high-stress environments. The 18-8 stainless steel material, combined with a passivated finish, provides robust resistance to rust and chemical exposure, making it ideal for outdoor machinery, marine equipment, and chemical processing plants. The integrated Buna-N rubber O-ring ensures a reliable seal against oils, water, and gases, supporting applications in pneumatic systems, hydraulic fittings, and automotive components where pressure integrity is critical. With a tamper-resistant T25 Torx drive, it adds security in public infrastructure or electronic enclosures, while the UNC coarse threading and Class 3A fit facilitate quick, secure fastening in assemblies subject to vibration. This screw delivers consistent performance in industrial fasteners for sectors like manufacturing, energy, and transportation, reducing maintenance costs and downtime.

Specification Summary & Compliance

This screw features precise Class 3A thread fit with UNC coarse threading for optimal engagement and durability. It adheres to ASME B18.3 manufacturing standards, ensuring dimensional accuracy and reliability. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, it meets environmental and safety requirements for global use.