S-92240A621 3/8"-16 x 5/8" ASME B18.2.1 18-8 Stainless Steel Hex Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance from 18-8 Stainless Steel construction, ideal for harsh environments and reducing replacement costs.
• Exceptional mechanical strength with 80,000 psi tensile strength and Rockwell B70 hardness for reliable performance under high-stress loads.
• Optimized for high-speed assembly with a coarse UNC thread and Class 2A fit, ensuring quick, secure installation and reduced labor time.
• Maximum grip and holding power due to the fully threaded design, providing consistent clamping force along the entire 5/8" length.
• Robust external hex drive allows for high-torque application with standard tools, minimizing stripping and improving installation reliability.
• Guaranteed dimensional consistency and interchangeability, manufactured to meet strict ASME B18.2.1 specifications.
• Safe for regulated industries with compliance to RoHS 3 and REACH, ensuring no hazardous substances are present.

Professional Applications & Engineering Value

This 3/8"-16 UNC Hex Head Screw is engineered to solve critical challenges in industrial assembly and machinery. The 18-8 Stainless Steel material provides excellent resistance to oxidation and chemical exposure, making it a durable choice for outdoor equipment, food processing machinery, and marine applications where moisture is a concern. The coarse thread design and Class 2A thread fit prevent cross-threading and allow for faster installation in production lines, reducing downtime. With an external hex drive and full threading, it delivers uniform stress distribution and high clamp load, essential for maintaining structural integrity in frames, brackets, and heavy-duty enclosures. Its compliance with major standards ensures it integrates seamlessly into existing industrial fastening systems, providing long-term reliability and reducing maintenance cycles.

Specification Summary & Compliance

This screw features a 3/8"-16 UNC thread with Class 2A dimensional accuracy and coarse spacing. It is fully manufactured in accordance with ASME B18.2.1 specifications, ensuring precise head width (9/16"), head height (15/64"), and length (5/8"). The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming it is free from restricted hazardous substances.