S-92210A601 5/16"-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 construction and passivated finish, ideal for harsh industrial environments
• Exceptional thread precision with Class 3A UNF fine threading for reliable, vibration-resistant fastening in critical applications
• High mechanical strength offering 70,000 psi tensile strength and Rockwell B55 hardness for durable, long-lasting performance
• Efficient installation with 3/16" hex drive and standard 82° countersink angle for flush mounting and reduced assembly time
• Full threading design ensures maximum grip length and uniform stress distribution across the entire fastener
• Regulatory compliance with ASME B18.3, RoHS 3, and REACH standards for safe, globally acceptable industrial use
• Optimized head geometry with 0.656" diameter and 0.198" height providing secure seating without protruding

Professional Applications & Engineering Value

Engineered for precision assembly, these 18-8 stainless steel flat head screws deliver exceptional performance in demanding environments where corrosion resistance and mechanical reliability are critical. The Class 3A UNF fine threading ensures tight tolerances and superior vibration resistance, making them ideal for machinery, automotive components, and electronic enclosures requiring secure fastening. The passivated finish enhances surface durability while maintaining conductivity, and the 82° countersink angle allows for seamless flush mounting in precision-machined components. With full threading and hex drive design, installation efficiency is maximized while maintaining consistent clamping force across industrial applications.

Specification Summary & Compliance

This 5/16"-24 UNF flat head screw features Class 3A thread fit precision with fine thread spacing, manufactured to ASME B18.3 specifications. The fastener maintains dimensional accuracy with 0.313" thread diameter and 5/8" length, supported by 70,000 psi tensile strength and Rockwell B55 hardness. Compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material restrictions adherence for industrial distribution.