S-90484A244 10-24 x 5/8" ASME B18.3, ASTM F835 Tamper-Resistant Hex-Drive Steel Button Head Screws

Key Features & Benefits at a Glance

• Superior tamper-resistance with specialized hex drive design to prevent unauthorized removal in high-security environments
• Exceptional durability from black-oxide alloy steel construction providing corrosion resistance and extended service life
• Maximum load-bearing capacity with 130,000 psi tensile strength and Rockwell C39 hardness for heavy-duty applications
• Precise thread engagement through Class 3A fit and UNC coarse threading ensuring reliable fastening in vibration-prone settings
• Complete thread coverage with full-length threading for uniform stress distribution and enhanced holding power
• Regulatory compliance assurance meeting ASME B18.3, RoHS 3, and REACH standards for quality and environmental safety
• Optimized head design featuring rounded button profile for reduced snagging and improved aesthetic integration

Professional Applications & Engineering Value

These 10-24 UNC tamper-resistant hex screws address critical security and performance challenges in industrial settings. The black-oxide alloy steel construction provides essential corrosion protection while maintaining the 130,000 psi tensile strength required for structural applications. The tamper-resistant hex drive specifically counters vandalism and unauthorized access in public infrastructure, electrical enclosures, and machinery guards. With Class 3A thread fit and coarse UNC threading, these fully threaded screws ensure rapid installation and superior resistance to vibrational loosening. The rounded head design minimizes protrusion risks in applications where worker safety and clean profiles are paramount, making them ideal for manufacturing equipment, transportation systems, and secure facility maintenance.

Specification Summary & Compliance

These rounded head screws feature precise 10-24 UNC coarse threads with Class 3A fit tolerance for optimal engagement. Manufacturing complies with ASME B18.3 specifications (ASTM F835) ensuring dimensional accuracy and performance reliability. The fasteners are fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, confirming they contain no restricted hazardous substances. Additional specifications include 5/8" length, 5/32" tamper-resistant hex drive, and right-hand thread direction for standard installation procedures.