S-98164A536 3/8"-24 x 3/4" ASME B18.3, ASTM F879 Stainless Steel Button Head Hex-Drive Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction and passivated finish, ideal for harsh industrial environments
• Precise torque transmission through 7/32" hex drive design, ensuring secure installation and reduced tool slippage
• Exceptional thread reliability with Class 3A fine thread fit, providing superior vibration resistance and sealing capabilities
• High mechanical strength offering 70,000 psi tensile strength and Rockwell B55 hardness for demanding applications
• Optimized load distribution from the rounded button head profile, minimizing surface damage and stress concentration
• Full threading coverage across the 3/4" length for maximum grip and uniform clamping force
• Regulatory compliance assurance meeting ASME B18.3, ASTM F879, RoHS 3, and REACH standards

Professional Applications & Engineering Value

This 3/8"-24 UNF rounded head screw delivers critical performance advantages in demanding industrial settings where corrosion resistance and thread precision are paramount. The combination of 316 stainless steel material and passivated surface treatment provides exceptional protection against chemical exposure and saltwater environments, significantly extending service life in marine, chemical processing, and food industry applications. The Class 3A thread fit with fine thread spacing ensures superior vibration resistance, making it ideal for machinery subjected to dynamic loads. The hex drive configuration facilitates high-torque installation while the rounded button head design distributes clamping forces evenly, preventing surface damage to connected components. These engineering features collectively address common failure points in industrial fastening systems, providing reliable, long-term performance where fastener integrity is critical to operational safety and equipment longevity.

Specification Summary & Compliance

This fastener maintains Class 3A thread tolerances per UNF standards with precise fine thread spacing (24 TPI) on a 3/8" diameter. Manufacturing complies with ASME B18.3 specifications and ASTM F879 material standards. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental responsibility and workplace safety compliance for global industrial applications.