S-90920A279 10-24 x 3/8" ASME B18.6.3 Alloy Steel Torx Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc plating for extended service life in demanding industrial environments
• Enhanced torque transmission through T20 Torx drive design, reducing cam-out and tool slippage during installation
• High tensile strength rating of 60,000 psi ensures reliable performance in heavy-duty applications
• Optimal flush mounting with standard 82° countersink angle and flat head design for clean, professional finishes
• Precise thread engagement with Class 2A fit and coarse UNC threading for faster assembly and vibration resistance
• Full threading coverage along the 3/8" length provides maximum grip strength and load distribution
• Regulatory compliance assurance meeting ASME B18.6.3, RoHS 3, and REACH standards for quality and safety

Professional Applications & Engineering Value

These 10-24 UNC flat head screws deliver exceptional engineering value in industrial fastening applications where vibration resistance and flush surface requirements are critical. The zinc-plated steel construction provides essential corrosion protection for machinery, electrical enclosures, and automotive assemblies exposed to harsh environments. The T20 Torx drive system addresses common installation challenges by preventing driver slippage that can damage fastener heads and compromise assembly integrity. With coarse thread spacing and full threading, these screws offer rapid installation in materials where fine threads might strip or require excessive torque. The 82° countersink angle ensures proper seating in standard chamfered holes, creating secure, flush-mounted connections that won't interfere with moving components or present snag hazards in operational equipment.

Specification Summary & Compliance

These flat head screws maintain precise Class 2A thread fit tolerances per UNC standards, ensuring consistent engagement and reliable performance. Manufacturing follows ASME B18.6.3 specifications for dimensional accuracy and mechanical properties. The products are fully compliant with RoHS 3 (2015/863/EU) restrictions on hazardous substances and REACH (EC 1907/2006) regulations for chemical safety, meeting the latest compliance requirements as of June 14, 2023. The combination of standardized dimensions and regulatory adherence makes these screws suitable for both domestic and international industrial applications requiring certified components.