S-92240A383 7/8"-9 x 2 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 long-term reliability.
• Exceptional tensile strength of 80,000 psi ensures secure fastening under high-stress conditions without failure.
• Coarse UNC threads provide faster installation and better grip in softer materials or where vibration is a concern.
• Full threading along the 2-1/4" length maximizes holding power and allows for adjustable positioning.
• Class 2A thread fit guarantees consistent, easy assembly while maintaining precise mechanical engagement.
• External hex drive design enables high-torque application with standard tools, reducing installation time.
• Compliance with ASME B18.2.1, RoHS 3, and REACH ensures product safety, environmental responsibility, and industry-standard quality.

Professional Applications & Engineering Value

Engineered for demanding industrial settings, this 7/8"-9 UNC hex head screw in 18-8 stainless steel addresses critical challenges like corrosion, vibration loosening, and high-load requirements. The coarse thread design enhances pull-out resistance in assemblies subject to dynamic stresses, while the fully threaded shank distributes clamping force evenly, preventing joint failure. Its 80,000 psi tensile strength and Rockwell B70 hardness make it suitable for heavy machinery, structural frameworks, and marine equipment, where corrosion-resistant fasteners are essential for longevity and reduced maintenance costs.

Specification Summary & Compliance

This screw features a Class 2A thread fit per UNC standards, ensuring dimensional accuracy and interchangeability. It meets ASME B18.2.1 for hex head screw specifications, with full compliance to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming it is free of hazardous substances and safe for industrial use.