S-92186A709 7/16"-20 x 3" ASME B18.2.1 Super-Corrosion-Resistant 316 Stainless Steel Hex Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance from 316 stainless steel construction, ideal for harsh industrial environments and chemical exposure
• Exceptional mechanical strength with 70,000 psi tensile strength and Rockwell B70 hardness for reliable, long-lasting fastening
• Precise thread engagement with Class 2A fit and UNF fine threading, ensuring secure connections and vibration resistance
• Optimized for heavy-duty applications featuring a 5/8" hex head and external hex drive for high-torque installation
• Enhanced design flexibility with partial threading that provides both gripping strength and unthreaded shank stability
• Full regulatory compliance meeting ASME B18.2.1 specifications and environmental standards including RoHS 3 and REACH
• Right-hand thread configuration for standard installation procedures and compatibility with existing equipment

Professional Applications & Engineering Value

These 316 stainless steel hex head screws deliver exceptional performance in demanding industrial settings where corrosion resistance and mechanical integrity are paramount. The UNF fine thread configuration provides superior resistance to vibrational loosening compared to coarse threads, while the partial threading design offers the dual advantage of maximum grip length in the threaded section combined with the shear strength of an unthreaded shank. The external hex drive and substantial 5/8" head width enable high torque application without stripping, making these fasteners ideal for heavy machinery, marine equipment, chemical processing plants, and structural applications where ASME B18.2.1 compliance is required. The combination of 70,000 psi tensile strength and Rockwell B70 hardness ensures these screws maintain their mechanical properties even under continuous load and stress conditions.

Specification Summary & Compliance

This 7/16"-20 UNF hex head screw features precise Class 2A thread fit tolerances with a minimum thread length of 1-1/8" and overall length of 3". Manufactured to ASME B18.2.1 specifications with right-hand thread direction and fine thread spacing. The fastener is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industrial applications while meeting international quality standards for inch-system fasteners.