S-93190A634 3/8"-16 x 2 1/2" ASME B18.2.1 Super-Corrosion-Resistant 316 Stainless Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance in harsh environments thanks to premium 316 stainless steel construction
• Superior mechanical strength with 70,000 psi tensile strength and Rockwell B70 hardness for reliable performance under high stress
• Optimized for quick assembly with a coarse UNC thread and Class 2A fit, ensuring smooth engagement and reduced installation time
• Maximum grip and holding power provided by the fully threaded design along the entire 2 1/2" length
• Secure, high-torque fastening enabled by the external hex drive and standard 9/16" head width for easy wrench access
• Long-term durability and reliability in industrial settings, backed by compliance with ASME B18.2.1 standards
• Safe for regulated industries with full RoHS 3 and REACH compliance, ensuring environmental and safety standards are met

Professional Applications & Engineering Value

This 3/8"-16 UNC hex head screw in 316 stainless steel is engineered to solve critical fastening challenges in demanding industrial environments. The coarse thread spacing and Class 2A thread fit provide excellent vibration resistance and prevent loosening in heavy machinery, construction, and marine applications. The fully threaded design ensures uniform stress distribution and maximum clamping force over the entire 2 1/2" length, reducing the risk of joint failure. With an external hex drive for high-torque installation, these screws are ideal for assembly lines and maintenance operations where speed and reliability are paramount. The superior corrosion resistance of 316 stainless steel makes these fasteners a dependable choice for chemical processing, offshore, and other corrosive settings, delivering long-term performance and reduced lifecycle costs.

Specification Summary & Compliance

This hex head screw features a 3/8"-16 UNC thread with Class 2A tolerance for precise fit and reliable performance. It is manufactured in compliance with the ASME B18.2.1 standard, ensuring dimensional accuracy and interchangeability. The product is also RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting strict environmental and safety regulations for industrial use.