S-91870A261 10-24 x 1 1/2" ASME B18.3 Tamper-Resistant Torx Stainless Steel Flat Head Screws

Key Features & Benefits at a Glance

• Enhanced tamper resistance with the specialized Torx T25 drive, deterring unauthorized access in high-security applications.
• Superior corrosion resistance from 18-8 stainless steel and passivated finish, ensuring long-term reliability in harsh environments.
• High tensile strength of 70,000 psi and Rockwell B70 hardness for dependable performance under heavy loads and stress.
• Precise Class 3A thread fit with 10-24 UNC coarse spacing, providing secure, vibration-resistant fastening and easy installation.
• Full threading and 82° countersink angle allow for flush mounting and even load distribution, reducing surface damage.
• Compliance with ASME B18.3, RoHS 3, and REACH standards ensures quality, safety, and environmental responsibility in industrial use.
• Durable right-hand thread design offers consistent engagement and resistance to loosening in dynamic applications.

Professional Applications & Engineering Value

These 10-24 UNC flat head screws are engineered to address critical challenges in industrial and security-focused settings. Made from 18-8 stainless steel with a passivated finish, they provide excellent resistance to corrosion, oxidation, and chemical exposure, making them ideal for outdoor machinery, marine equipment, and HVAC systems. The tamper-resistant Torx T25 drive enhances security by preventing tampering in public infrastructure, electronic enclosures, and access panels. With a coarse thread spacing and fully threaded design, they ensure rapid installation and strong holding power in materials like metal and hardwood, reducing maintenance needs and downtime. This combination of high tensile strength and precise thread fit delivers reliable fastening in vibration-prone environments, supporting long-term operational efficiency.

Specification Summary & Compliance

This product adheres to precise dimensional standards, including a Class 3A thread fit for tight tolerances and UNC coarse thread spacing with a size of 10-24. It meets ASME B18.3 specifications for consistency and performance, and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and environmentally safe for industrial use.