S-92240A306 5/16"-24 x 1 1/4" 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 environments and extended service life
• Exceptional holding power from the fully threaded design and Class 2A fine UNF threading, ensuring secure and vibration-resistant connections
• High mechanical strength with 80,000 psi tensile strength and Rockwell B70 hardness for reliable performance under heavy loads
• Easy installation and removal using standard tools thanks to the external hex drive and 1/2" head width
• Precision dimensional accuracy meeting ASME B18.2.1 specifications, guaranteeing consistent fit and interchangeability
• Compliance with environmental regulations including RoHS 3 and REACH, ensuring safe and sustainable use in industrial applications
• Versatile right-hand thread design compatible with standard UNF nuts and components for broad application flexibility

Professional Applications & Engineering Value

This 5/16"-24 UNF hex head screw delivers critical reliability in demanding industrial settings where corrosion resistance and high tensile strength are paramount. Made from 18-8 stainless steel, it effectively combats rust and chemical exposure in marine, chemical processing, and outdoor equipment. The Class 2A fine thread and fully threaded body provide superior grip and load distribution, reducing the risk of loosening under vibration—common in machinery, automotive assemblies, and structural frameworks. Its external hex drive allows for high-torque installation, ensuring tight, secure fastening in tight spaces. Engineered to meet ASME B18.2.1, this screw offers precision and durability, minimizing downtime and maintenance costs in heavy-duty applications.

Specification Summary & Compliance

This screw features a 5/16"-24 UNF fine thread with Class 2A fit for precise dimensional tolerance, a length of 1 1/4", and full threading. It complies with ASME B18.2.1 manufacturing standards and is certified RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, ensuring adherence to safety and environmental regulations.