S-92245A807 5/8"-11 x 1 3/4" FF-S-85, MS35307-463 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, ideal for harsh environments and extended service life
• High tensile strength of 70,000 PSI ensures reliable performance under heavy loads and demanding industrial conditions
• Rockwell B74 hardness provides excellent durability and resistance to wear and deformation
• Class 2A thread fit with UNC coarse threading allows for easier, faster assembly and reduced risk of cross-threading
• External hex drive design offers secure tool engagement and efficient installation with standard wrenches
• Partial threading provides unthreaded shank for precise clamping and alignment in structural applications
• Full regulatory compliance with Fed. Spec. FF-S-85, RoHS 3, and REACH ensures material safety and quality assurance

Professional Applications & Engineering Value

Engineered for demanding industrial applications, this 5/8"-11 UNC hex head screw delivers exceptional performance where reliability matters most. The passivated 18-8 stainless steel construction provides superior corrosion resistance, making it ideal for outdoor equipment, marine environments, chemical processing plants, and food processing facilities where moisture and corrosive elements are present. The coarse UNC threading combined with Class 2A thread fit ensures quick installation and secure fastening in structural steel, heavy machinery, and construction applications. With 70,000 PSI tensile strength and Rockwell B74 hardness, this partially threaded screw maintains integrity under vibration and heavy loads, while the external hex drive allows for high torque application without stripping. The unthreaded shank section provides superior shear strength and precise component alignment in bolted connections.

Specification Summary & Compliance

This 5/8"-11 UNC hex head screw features precision Class 2A thread fit with coarse threading for optimal engagement and assembly efficiency. The fastener meets stringent Fed. Spec. FF-S-85 (MS35307-463) manufacturing standards, ensuring dimensional accuracy and performance reliability. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, this screw contains no restricted substances and is suitable for global industrial applications requiring environmental and safety compliance.