S-92210A794 5/8"-11 x 1" 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, ideal for harsh industrial environments
• Exceptional thread reliability with Class 3A fit and UNC coarse threading, ensuring secure fastening and vibration resistance
• High mechanical strength offering 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 3/8" hex drive for high-torque applications without cam-out issues
• Full threading coverage along the 1" length provides maximum grip and load distribution
• Regulatory compliance meeting ASME B18.3 standards and environmental regulations including RoHS 3 and REACH

Professional Applications & Engineering Value

These 18-8 stainless steel flat head screws deliver critical performance advantages in industrial settings where corrosion resistance and mechanical integrity are paramount. The combination of Class 3A thread fit with UNC coarse threading ensures reliable engagement in high-vibration applications, while the passivated finish significantly enhances corrosion protection beyond standard stainless steel. The 82° countersink angle and flat head profile create seamless surface transitions in precision assemblies. With 70,000 psi tensile strength and Rockwell B55 hardness, these hex drive screws withstand substantial mechanical stress in heavy machinery, structural frameworks, and industrial equipment where fastener failure is not an option.

Specification Summary & Compliance

Manufactured to precise dimensional standards with Class 3A thread fit and UNC thread form ensuring interchangeability and reliable performance. These fully threaded screws maintain strict compliance with ASME B18.3 specifications for dimensional accuracy and mechanical properties. Environmental compliance is verified through RoHS 3 (2015/863/EU) compliance and REACH (EC 1907/2006) compliance, confirming the absence of restricted substances. The 5/8"-11 thread size with 1" length and 3/8" hex drive provides consistent, standardized fastening solutions for professional applications.