S-92198A441 1/2"-20 x 3" ASME B18.2.1 18-8 Stainless Steel Hex Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments
• High tensile strength of 80,000 PSI ensures reliable performance in demanding applications
• Rockwell B70 hardness provides excellent wear resistance and durability
• Class 2A thread fit guarantees precise installation and secure fastening
• Partially threaded design allows for controlled clamping force and vibration resistance
• External hex drive with 3/4" head width enables easy installation with standard tools
• Compliance with ASME B18.2.1, RoHS 3, and REACH ensures quality and environmental safety standards

Professional Applications & Engineering Value

This 18-8 stainless steel hex head screw delivers exceptional engineering value in industrial applications where corrosion resistance and mechanical strength are critical. The 1/2"-20 UNF fine threading provides superior engagement in materials requiring precise thread pitch, while the partially threaded shank prevents loosening under vibration. The external hex drive with substantial head dimensions ensures secure tool engagement during high-torque installation. Engineered to meet ASME B18.2.1 specifications, this fastener is ideal for machinery assembly, structural frameworks, and equipment manufacturing where 80,000 PSI tensile strength and consistent performance under load are essential requirements.

Specification Summary & Compliance

This 3" hex head screw features 1/2"-20 UNF fine threads with Class 2A thread fit tolerance for precise installation. Manufactured to ASME B18.2.1 standards with Rockwell B70 hardness and 80,000 PSI tensile strength. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industrial sectors.