S-92245A583 5/16"-18 x 1" FF-S-85, MS35307-334 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
- High tensile strength of 70,000 psi ensures reliable performance under heavy loads and vibration
- Class 2A thread fit provides smooth assembly and consistent engagement for reduced installation time
- External hex drive design allows for high-torque application with standard tools, minimizing stripping risks
- Partially threaded shank offers optimal clamping force distribution and prevents joint loosening
- Compliance with Fed. Spec. FF-S-85 (MS35307-334) guarantees consistent quality and interchangeability
- RoHS 3 and REACH compliance ensures environmental responsibility and global regulatory acceptance
Professional Applications & Engineering Value
This 5/16"-18 UNC hex head screw delivers exceptional engineering value in demanding applications where corrosion resistance and mechanical strength are critical. The passivated 18-8 stainless steel construction provides excellent protection against oxidation and chemical exposure, making it ideal for marine, chemical processing, and outdoor equipment. The coarse UNC thread and Class 2A fit ensure rapid assembly with reduced cross-threading risks, while the partially threaded design concentrates clamping force precisely where needed. With 70,000 psi tensile strength and Rockwell B74 hardness, it maintains integrity under dynamic loads and vibration, solving common failure points in machinery, structural frameworks, and heavy-duty assemblies where reliability is non-negotiable.
Specification Summary & Compliance
This hex head screw features precision 5/16"-18 UNC coarse threads with Class 2A thread fit for consistent dimensional accuracy. It meets Fed. Spec. FF-S-85 (MS35307-334) manufacturing standards and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring both performance reliability and regulatory adherence for global industrial use.
