S-92198A668 9/16"-12 x 6" ASME B18.2.1 18-8 Stainless Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments.
• High tensile strength of 80,000 psi ensures reliable performance under heavy loads and stress.
• Rockwell B70 hardness provides excellent durability and resistance to wear and deformation.
• Coarse UNC thread design allows for faster installation and better grip in a variety of materials.
• Class 2A thread fit offers consistent, precise engagement for secure fastening without binding.
• Partially threaded shank concentrates strength where needed and prevents over-tightening.
• External hex drive and hex head enable easy installation with standard tools, reducing assembly time.

Professional Applications & Engineering Value

This 9/16"-12 UNC hex head screw is engineered to address critical challenges in industrial settings, such as vibration loosening and material fatigue. The 18-8 stainless steel composition provides superior corrosion resistance, making it suitable for outdoor, marine, and chemical-exposed applications. Its coarse thread and Class 2A fit ensure quick, reliable fastening in structural assemblies, machinery, and heavy equipment, reducing downtime. The partially threaded design enhances clamp load distribution, preventing joint failure. Compliant with ASME B18.2.1, it guarantees interchangeability and safety in high-stress environments, offering long-term reliability and cost savings.

Specification Summary & Compliance

This screw features a 6" length with a minimum thread length of 1 3/8", UNC coarse threads, and Class 2A thread fit for precise dimensional accuracy. It is manufactured in accordance with ASME B18.2.1 specifications, ensuring consistent quality and performance. Additionally, it is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, supporting environmentally responsible and safe industrial use.