S-92198A466 9/16"-18 x 3" 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 industrial environments
• Enhanced durability and strength with 80,000 psi tensile strength and Rockwell B70 hardness for heavy-duty applications
• Secure and precise fastening thanks to UNF fine threading and Class 2A thread fit, reducing vibration loosening
• Easy installation and removal with external hex drive and 13/16" head width for standard wrench compatibility
• Reliable partial threading providing optimal grip length (1 3/8" min) while minimizing unnecessary thread engagement
• Compliance with industry standards including ASME B18.2.1, ensuring consistent quality and interchangeability
• Environmentally responsible manufacturing with RoHS 3 and REACH compliance for global regulatory acceptance

Professional Applications & Engineering Value

This 9/16"-18 UNF hex head screw delivers exceptional performance in demanding industrial settings where corrosion resistance and mechanical strength are critical. The 18-8 stainless steel composition provides excellent protection against rust and chemical exposure, making it ideal for marine, chemical processing, and food industry applications. The UNF fine threading offers superior vibration resistance compared to coarse threads, while the partial threading design ensures optimal clamping force distribution. With 80,000 psi tensile strength and Rockwell B70 hardness, this external hex drive fastener maintains integrity under heavy loads and repeated torque applications. The 3" length and Class 2A thread fit provide precise engagement in machinery, structural assemblies, and equipment requiring reliable, long-term fastening solutions.

Specification Summary & Compliance

This hex head screw features 9/16"-18 UNF fine threading with Class 2A thread fit for precision tolerance. The 3" length includes minimum thread length of 1 3/8" with partial threading configuration. Manufacturing complies with ASME B18.2.1 specifications for dimensional accuracy and performance standards. Environmental compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) requirements, ensuring restricted substance compliance for global industrial applications.