S-90275A238 10-24 x 1/4" ASME B18.6.3 Steel Slotted Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction for extended service life in demanding environments
• Maximum holding power with 60,000 psi tensile strength and Rockwell B70 hardness for reliable fastening performance
• Precision thread engagement with Class 2A thread fit ensuring consistent installation and vibration resistance
• Flush mounting capability featuring 82° countersink angle and undercut flat head design for seamless surface integration
• Full-length threading provides complete engagement along the entire 1/4" length for superior load distribution
• Industry-standard compliance meeting ASME B18.6.3 specifications for guaranteed dimensional accuracy and performance
• Environmental responsibility with RoHS 3 and REACH compliance for sustainable manufacturing practices

Professional Applications & Engineering Value

These 10-24 UNC flat head screws deliver exceptional engineering value through their zinc-plated steel construction and precision coarse thread spacing. The combination of 60,000 psi tensile strength and Rockwell B70 hardness ensures reliable performance in high-stress applications where vibration resistance and long-term durability are critical. The undercut flat head profile with 82° countersink angle allows for flush mounting in precision assemblies, eliminating protrusions that could interfere with moving components. The fully threaded design provides maximum thread engagement across the entire length, distributing loads evenly and preventing loosening under dynamic conditions. These features make them ideal for industrial machinery, electronic enclosures, and automotive assemblies where consistent performance and regulatory compliance are essential.

Specification Summary & Compliance

Manufactured to exacting ASME B18.6.3 standards, these screws feature Class 2A thread fit tolerances for precise installation and optimal performance. The UNC coarse thread specification ensures quick assembly and reliable holding power in various materials. Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations confirms environmental responsibility and workplace safety standards. The right-hand thread direction and slotted drive style provide industry-standard compatibility with common installation tools and procedures.