S-92245A953 3/8"-24 x 1 1/8" FF-S-85, MS35308-361 Mil. Spec. 18-8 Stainless Steel Hex Head Screws
Mil. Spec. 18-8 Stainless Steel Hex Head Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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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
- Precise Class 2A thread fit provides smooth assembly and secure fastening in fine-thread applications
- External hex drive design allows for high-torque installation with standard tools, reducing assembly time
- Full threading along the 1 1/8" length maximizes grip and load distribution across the entire fastener
- Rockwell B74 hardness rating maintains thread integrity and prevents stripping during repeated use
- Compliance with RoHS 3 and REACH standards ensures environmental safety and regulatory acceptance
Professional Applications & Engineering Value
This 3/8"-24 UNF hex head screw delivers exceptional engineering value in demanding applications where corrosion resistance and mechanical strength are critical. The passivated 18-8 stainless steel material provides excellent protection against rust and chemical exposure, making it suitable for marine, chemical processing, and outdoor equipment. The fine thread spacing and Class 2A thread fit ensure vibration-resistant fastening in precision assemblies, while the external hex drive enables efficient installation in confined spaces. With its 70,000 psi tensile strength and full threading, this screw maintains joint integrity in structural applications, machinery, and heavy-duty equipment, reducing maintenance needs and downtime.
Specification Summary & Compliance
This hex head screw features a 3/8"-24 UNF thread size with Class 2A thread fit and fine thread spacing, ensuring dimensional accuracy per unified screw thread standards. It meets Fed. Spec. FF-S-85 (MS35308-361) for material and manufacturing consistency, and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, supporting sustainable procurement practices.
