S-92210A641 3/8"-24 x 5/8" ASME B18.3 Stainless Steel Hex Drive Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel and passivated finish for long-term reliability in harsh environments
• Precise fine thread engagement with Class 3A fit ensuring secure fastening and vibration resistance
• High-strength performance with 70,000 psi tensile strength and Rockwell B55 hardness for demanding applications
• Optimal flush mounting with standard 82° countersink angle and flat head design for smooth surface finishes
• Efficient installation using 7/32" hex drive for secure tool engagement and reduced slipping
• Full thread coverage along the 5/8" length providing maximum grip and load distribution
• Regulatory compliance assurance meeting ASME B18.3 standards and environmental regulations

Professional Applications & Engineering Value

This 3/8"-24 UNF Class 3A flat head screw delivers exceptional engineering value for precision assembly applications where fine thread accuracy and corrosion resistance are critical. The combination of 18-8 stainless steel material and passivated finish provides superior protection against chemical exposure and environmental degradation, making it ideal for marine equipment, food processing machinery, and chemical processing installations. The Class 3A thread fit ensures tight tolerances for vibration-prone applications, while the 82° countersink angle allows for seamless flush mounting in precision machinery and structural components. With 70,000 psi tensile strength, this fastener maintains integrity under significant mechanical stress, offering reliable performance in automotive, aerospace, and industrial equipment where failure is not an option.

Specification Summary & Compliance

Manufactured to exacting standards, this flat head screw features 3/8"-24 UNF fine threads with Class 3A precision fit for superior thread engagement. The 5/8" length provides full threading coverage, while the 82° countersink angle ensures proper seating in standard applications. Compliance includes ASME B18.3 specifications for dimensional accuracy, along with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industries and international markets.