S-92186A547 1/4"-20 x 1 5/8" ASME B18.2.1 Super-Corrosion-Resistant 316 Stainless Steel Hex Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction for extended service life in harsh environments
• Exceptional mechanical strength with 70,000 psi tensile strength and Rockwell B70 hardness for heavy-duty applications
• Reliable thread engagement with Class 2A thread fit ensuring consistent installation and vibration resistance
• Optimized drive performance through external hex design providing secure tool engagement and high torque capability
• Enhanced installation efficiency with UNC coarse threads enabling faster assembly and reduced cross-threading risk
• Partial threading design allowing for precise clamping force control in specific joint configurations
• Full regulatory compliance meeting ASME B18.2.1 standards and environmental regulations including RoHS 3 and REACH

Professional Applications & Engineering Value

This 1/4"-20 UNC hex head screw in 316 stainless steel delivers critical performance advantages for industrial fastening systems where corrosion resistance and mechanical reliability are paramount. The combination of 70,000 psi tensile strength and Rockwell B70 hardness ensures dependable performance under sustained loads and vibration, while the coarse thread design facilitates rapid assembly in production environments. The external hex drive configuration provides superior torque transmission for high-clamp-force applications, and the partial threading allows engineers to precisely control engagement length in structural assemblies. These industrial hex screws are particularly valuable in chemical processing, marine equipment, and food processing machinery where corrosion resistant fasteners must maintain integrity despite exposure to moisture, chemicals, and temperature variations.

Specification Summary & Compliance

This hex head screw features precise Class 2A thread fit per UNC standards with 1/4"-20 thread size and 1-5/8" length. Manufactured to ASME B18.2.1 specifications, the fastener ensures dimensional accuracy and interchangeability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, confirming its suitability for global industrial applications with strict material composition requirements.