S-92198A360 3/8"-24 x 2 1/4" 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 industrial environments
• High tensile strength of 80,000 psi ensures reliable performance under heavy loads and vibration
• Fine UNF thread design provides better engagement and vibration resistance compared to coarse threads
• External hex drive with 9/16" head width allows for easy installation with standard tools and high torque application
• Class 2A thread fit guarantees consistent, precision threading for smooth assembly operations
• Partially threaded shank design offers optimal clamping force distribution and prevents joint loosening
• Full compliance with ASME B18.2.1, RoHS 3, and REACH ensures quality assurance and environmental safety standards

Professional Applications & Engineering Value

This 3/8"-24 UNF hex head screw delivers exceptional engineering value across demanding industrial applications. The 18-8 stainless steel composition provides excellent corrosion resistance, making it suitable for chemical processing, marine equipment, and food machinery where moisture exposure is common. The fine thread configuration offers superior vibration resistance compared to coarse threads, preventing loosening in dynamic load environments like automotive assemblies and heavy machinery. With 80,000 psi tensile strength and Rockwell B70 hardness, this fastener maintains structural integrity under significant stress while the partially threaded design concentrates clamping force precisely where needed. The external hex drive enables high-torque installation without stripping, streamlining assembly processes in manufacturing and construction applications where reliability and efficiency are paramount.

Specification Summary & Compliance

This hex head screw features precise Class 2A thread fit tolerances with UNF fine threading (24 TPI) on a 3/8" diameter. The manufacturing process strictly adheres to ASME B18.2.1 dimensional standards, ensuring interchangeability and consistent performance. The product is fully compliant with RoHS 3 (2015/863/EU) restrictions on hazardous substances and meets REACH (EC 1907/2006) requirements for chemical safety, making it suitable for regulated industries and international markets.