S-92245A966 1/2"-20 x 2 3/4" FF-S-85, MS35308-418 Mil. Spec. 18-8 Stainless Steel Hex Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with passivated 18-8 stainless steel construction for long-lasting performance in harsh industrial environments
• Exceptional mechanical strength with 70,000 psi tensile strength and Rockwell B80 hardness to withstand heavy loads and prevent fastener failure
• Reliable coarse thread engagement with UNC threading and Class 2A fit ensuring secure fastening and vibration resistance in demanding applications
• Optimized partial threading design providing superior clamping force control and reduced risk of cross-threading during assembly
• Industrial-grade external hex drive with 3/4" head width enabling high-torque installation using standard tools without stripping
• Full regulatory compliance meeting Fed. Spec. FF-S-85 (MS35308-418), RoHS 3, and REACH standards for quality assurance and environmental safety
• Versatile 2 3/4" length with 1 1/4" minimum thread length accommodating various material thicknesses in structural and machinery applications

Professional Applications & Engineering Value

This heavy-duty hex head screw delivers critical engineering solutions where corrosion resistance and structural integrity are paramount. The passivated 18-8 stainless steel construction provides exceptional protection against rust and chemical degradation in marine, chemical processing, and outdoor applications. The 1/2"-20 UNC coarse thread with Class 2A fit ensures rapid assembly and reliable performance in vibration-prone environments, while the partial threading design maximizes clamping force efficiency. Engineered for industrial machinery, structural steel connections, and heavy equipment assembly, this fastener combines 70,000 psi tensile strength with standardized dimensions for seamless integration into existing systems requiring Fed. Spec. FF-S-85 compliance.

Specification Summary & Compliance

Manufactured to precise inch system dimensions with Class 2A thread fit tolerance per UNC standards. The 1/2"-20 UNC coarse thread configuration ensures proper engagement while the partially threaded design (minimum 1 1/4" thread length on 2 3/4" overall length) provides optimal fastening characteristics. Full compliance with Fed. Spec. FF-S-85 (MS35308-418) manufacturing specifications, along with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, guarantees product quality and regulatory adherence for industrial procurement requirements.