S-92245A608 5/16"-24 x 2" FF-S-85, MS35308-340 Mil. Spec. 18-8 Stainless Steel Hex Head Screws
Mil. Spec. 18-8 Stainless Steel Hex Head Screws
Image may differ from product. See technical specification for details.
Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
Key Features & Benefits at a Glance
- Superior corrosion resistance with passivated 18-8 stainless steel construction, ideal for harsh industrial environments
- Exceptional mechanical strength with 70,000 psi tensile strength and Rockwell B74 hardness for reliable performance under heavy loads
- Precise thread engagement with Class 2A thread fit ensuring consistent, vibration-resistant fastening in critical assemblies
- Optimized partial threading design providing enhanced grip and reduced risk of cross-threading in deep applications
- Easy installation and removal with external hex drive and standard 1/2" head width for common tool compatibility
- Regulatory compliance assurance meeting Fed. Spec. FF-S-85 (MS35308-340), RoHS 3, and REACH for global supply chain integration
- Fine UNF thread spacing delivering superior clamping force and fatigue resistance in precision machinery
Professional Applications & Engineering Value
Engineered for demanding industrial applications, this 5/16"-24 UNF hex head screw combines the corrosion resistance of passivated 18-8 stainless steel with high tensile strength to solve common failure points in machinery, structural assemblies, and equipment subjected to vibration and environmental exposure. The partially threaded design and Class 2A thread fit ensure secure fastening in deep-tapped holes while minimizing galling risks. Its external hex drive and standardized inch dimensions facilitate quick maintenance in aerospace, automotive, and heavy equipment sectors where UNF fine threads are preferred for precision torque control and fatigue resistance under dynamic loads.
Specification Summary & Compliance
This screw maintains Class 2A thread fit per UNF standards with precise dimensional control (0.3125" major diameter, 24 TPI fine spacing). Manufacturing adheres to Fed. Spec. FF-S-85 (MS35308-340) for consistent quality. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring material safety and environmental responsibility in global industrial supply chains.
