S-90585A035 12-24 x 1" Stainless Steel Hex Drive Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 Stainless Steel construction and passivated finish, ideal for harsh environments and extended service life
• Exceptional mechanical strength offering 70,000 psi tensile strength and Rockwell B55 hardness for reliable, high-stress fastening applications
• Precision thread engagement with Class 3A fit and UNC coarse threads ensuring secure, vibration-resistant connections
• Efficient installation and flush finish provided by the 1/8" hex drive and standard 82° countersink angle for seamless surface integration
• Full threading along the 1" length delivers maximum grip and adjustability in various material thicknesses
• Regulatory compliance with RoHS 3 and REACH standards, meeting stringent environmental and safety requirements for industrial use
• Consistent dimensional accuracy with controlled head diameter tolerance for reliable performance in automated or manual assembly

Professional Applications & Engineering Value

Engineered for demanding industrial applications, these 12-24 UNC flat head screws address critical challenges in machinery, marine, and chemical processing equipment. The 316 Stainless Steel material, combined with a passivated finish, provides exceptional resistance to pitting and corrosion from chlorides and acidic exposure, reducing maintenance frequency and downtime. The hex drive design allows for high-torque installation without cam-out, while the 82° countersink angle ensures a flush mount to prevent snagging and improve aerodynamic or hygienic surfaces. With a coarse thread profile and Class 3A thread fit, these screws offer quick assembly and robust holding power in metals and plastics, making them a reliable choice for structural and enclosure fastening where vibration resistance and longevity are paramount.

Specification Summary & Compliance

This product adheres to UNC thread standards with a Class 3A thread fit for precise, interchangeable use. Dimensions include a 1" length, 0.438" head diameter (tolerance: -0.028" to 0.012"), and fully threaded design. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material restrictions are met for global industrial supply chains.