S-92240A916 1"-8 x 3" ASME B18.2.1 18-8 Stainless Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional 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
• Coarse UNC threading provides faster installation and superior resistance to loosening
• Class 2A thread fit guarantees consistent, precise engagement with mating components
• Full threading along the 3" length offers maximum adjustability and holding power
• External hex drive design enables high-torque installation with standard tools
• Rockwell B70 hardness maintains thread integrity and prevents stripping during repeated use

Professional Applications & Engineering Value

This 1"-8 UNC coarse thread hex head screw delivers critical performance advantages for demanding industrial applications where fastener failure is not an option. The 18-8 stainless steel composition provides inherent corrosion resistance that withstands exposure to moisture, chemicals, and extreme temperatures, eliminating premature degradation common in inferior fasteners. The coarse thread design combined with Class 2A thread fit ensures rapid assembly while maintaining vibration resistance in heavy machinery, structural frameworks, and equipment manufacturing. The external hex drive accommodates high torque requirements during installation, making it particularly valuable for maintenance operations and production lines where speed and reliability are paramount. These fully threaded fasteners distribute clamping force evenly across the entire 3" length, providing superior joint integrity in thick materials and stacked assemblies.

Specification Summary & Compliance

This hex head screw maintains precise Class 2A thread fit tolerances according to UNC thread standards with 1"-8 coarse thread spacing. Manufacturing and dimensional specifications strictly conform to ASME B18.2.1 standards, ensuring interchangeability and reliable 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 global industrial supply chains and regulated applications.