S-92245A581 5/16"-18 x 3/4" FF-S-85, MS35307-332 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 mechanical stress.
• Rockwell B74 hardness provides excellent wear resistance and durability for repeated use.
• Fully threaded UNC coarse pattern delivers faster installation and superior holding power in various materials.
• Class 2A thread fit offers consistent, easy assembly while maintaining secure fastening integrity.
• External hex drive design allows for high-torque application with standard tools, reducing installation time.
• Compliance with Fed. Spec. FF-S-85, RoHS 3, and REACH ensures regulatory adherence for industrial and export applications.

Professional Applications & Engineering Value

Engineered for demanding industrial settings, this 5/16"-18 x 3/4" passivated 18-8 stainless steel hex head screw addresses critical challenges like corrosion, vibration loosening, and high-stress fatigue. The UNC coarse thread and fully threaded design enhance grip in soft or brittle substrates, reducing the risk of strip-out. Its external hex drive facilitates efficient installation in confined spaces, while the 70,000 psi tensile strength and Rockwell B74 hardness ensure longevity in machinery, construction, and marine applications. This fastener is ideal for assembly lines, structural frameworks, and equipment requiring reliable, corrosion-resistant fasteners that meet stringent industry standards.

Specification Summary & Compliance

This screw features a 5/16"-18 UNC thread with Class 2A fit for precise dimensional accuracy and easy assembly. It complies with Fed. Spec. FF-S-85 (MS35307-332) for consistent quality, and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use in global industrial markets.