S-92245A927 5/8"-11 x 4" FF-S-85, MS35307-472 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, ensuring long-term reliability in harsh environments.
- Exceptional mechanical strength offering 70,000 psi tensile strength and Rockwell B74 hardness for heavy-duty applications.
- Reliable coarse UNC threading with Class 2A fit for quick assembly and secure fastening in demanding conditions.
- Optimized partial threading design providing enhanced grip and reduced risk of thread stripping in structural connections.
- External hex drive with 15/16" head width for easy installation using standard tools, improving installation efficiency.
- Full compliance with industry standards including Fed. Spec. FF-S-85 (MS35307-472), ensuring consistent quality and interchangeability.
- Environmental regulation adherence with RoHS 3 and REACH compliance for safe, sustainable industrial use.
Professional Applications & Engineering Value
Engineered for heavy-duty industrial applications, this 5/8"-11 UNC hex head screw delivers critical performance where corrosion resistance and structural integrity are paramount. The passivated 18-8 stainless steel material effectively combats oxidation and chemical exposure, making it ideal for construction, machinery assembly, and marine environments. Its coarse thread design ensures rapid installation and superior holding power in wood, metal, and composite materials, while the partial threading concentrates clamping force precisely where needed. With a 4" length and external hex drive, it provides versatile solutions for structural frameworks, equipment mounting, and infrastructure projects requiring dependable, long-lasting fastening.
Specification Summary & Compliance
This screw maintains Class 2A thread fit per UNC standards, ensuring precise dimensional accuracy and reliable engagement. Manufacturing adheres to Fed. Spec. FF-S-85 (MS35307-472) for consistent quality, while meeting RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental compliance, confirming its suitability for regulated industrial and commercial use without hazardous substances.
