S-92186A920 1"-8 x 4" 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, ideal for harsh industrial and marine environments
• Exceptional mechanical strength offering 70,000 psi tensile strength and Rockwell B70 hardness for heavy-duty applications
• Reliable coarse UNC threading ensures faster assembly and better performance in high-vibration settings
• Precise Class 2A thread fit guarantees consistent engagement and reduces cross-threading risks
• External hex drive design provides secure tool grip and high torque capability during installation
• Partial threading configuration allows for optimized clamping force and material savings
• Full compliance with ASME B18.2.1 and environmental regulations including RoHS 3 and REACH

Professional Applications & Engineering Value

Engineered for demanding industrial applications, this 1"-8 UNC hex head screw in 316 stainless steel delivers outstanding performance where corrosion resistance and structural integrity are critical. The coarse thread design prevents loosening under vibration, making it ideal for machinery, structural frameworks, and marine equipment. With partial threading, it provides concentrated clamping force while reducing weight and material usage. The external hex drive ensures maximum torque transfer during installation, minimizing stripping risks. Meeting ASME B18.2.1 specifications, this screw offers reliable performance in chemical processing, offshore installations, and other corrosive environments where failure is not an option.

Specification Summary & Compliance

This 4" length hex head screw features 1"-8 UNC coarse threads with Class 2A thread fit ensuring precise dimensional accuracy. Manufactured to ASME B18.2.1 standards with 70,000 psi tensile strength and Rockwell B70 hardness. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations for safe industrial use.