S-92210A420 10-24 x 3 1/2" ASME B18.3 Stainless Steel Hex Drive Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction and passivated finish for extended service life in harsh environments
• Exceptional mechanical strength delivering 70,000 psi tensile strength and Rockwell B55 hardness for reliable load-bearing performance
• Precise thread engagement with Class 3A fit and UNC coarse threads ensuring vibration resistance and secure fastening
• Efficient installation through hex drive design providing superior torque transmission and reduced cam-out risk
• Full-length threading offering maximum grip length and uniform stress distribution across the entire fastener
• Standardized dimensions with 82° countersink angle ensuring flush mounting and compatibility with standard tooling
• Regulatory compliance meeting ASME B18.3 specifications while being RoHS 3 and REACH compliant for global industrial use

Professional Applications & Engineering Value

This 10-24 UNC flat head screw delivers critical engineering solutions where flush mounting and high-strength fastening are paramount. The 18-8 stainless steel material combined with passivated finish provides exceptional resistance to corrosion and chemical exposure, making it ideal for marine, food processing, and outdoor industrial equipment. The hex drive design ensures maximum torque application without slippage, while the Class 3A thread fit maintains precise tolerances for vibration-prone applications. With coarse thread spacing and fully threaded design, installation is accelerated while maintaining uniform clamping force across the entire 3 1/2" length, preventing joint failure in heavy machinery and structural assemblies.

Specification Summary & Compliance

Manufactured to exacting standards with Class 3A thread fit precision and UNC thread form specifications. Complies with ASME B18.3 dimensional requirements featuring standard 82° countersink angle, 0.411" head diameter, and right-hand threading. Meets environmental regulations including RoHS 3 (2015/863/EU) compliance and REACH (EC 1907/2006) standards for hazardous substance restrictions. The coarse thread spacing and fully threaded configuration ensure consistent performance across industrial applications requiring reliable, high-strength fastening solutions.