S-92245A537 1/4"-20 x 1/2" FF-S-85, MS35307-303 Mil. Spec. 18-8 Stainless Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with passivated 18-8 stainless steel construction, ideal for harsh industrial environments
• Superior load-bearing capability with 70,000 psi tensile strength and Rockwell B74 hardness for reliable performance under stress
• Easy installation and removal thanks to the external hex drive and standard 1/4"-20 UNC coarse thread spacing
• Consistent thread engagement with Class 2A thread fit and fully threaded design for maximum holding power
• Broad regulatory compliance meeting Fed. Spec. FF-S-85 (MS35307-303), RoHS 3, and REACH for global supply chain compatibility
• Durable mechanical properties ensuring long-term reliability in heavy-duty fastening applications

Professional Applications & Engineering Value

Engineered for demanding industrial settings, these 1/4"-20 UNC hex head screws in passivated 18-8 stainless steel provide critical resistance to corrosion and oxidation, extending service life in moisture-prone or chemical-exposed environments. The coarse thread spacing and Class 2A thread fit enable quick assembly with reduced cross-threading risks, while the fully threaded design ensures uniform stress distribution across the entire fastener length. Ideal for machinery, structural frameworks, and equipment manufacturing, these screws deliver consistent 70,000 psi tensile strength and meet stringent Fed. Spec. FF-S-85 requirements, making them a trusted choice for engineers prioritizing durability and compliance.

Specification Summary & Compliance

This hex head screw features a 1/4"-20 UNC thread with Class 2A tolerance for precise fit, coarse thread spacing, and right-hand threading. Manufactured to Fed. Spec. FF-S-85 (MS35307-303), it complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental and safety standards are met for industrial and export applications.