S-90585A689 7/16"-14 x 1 1/2" ASME B18.3 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
• High tensile strength of 70,000 psi ensures reliable performance under heavy loads and vibration
• Precise Class 3A thread fit provides secure, tight fastening with minimal risk of loosening
• 1/4" hex drive design allows for easy installation and high torque application with standard tools
• Fully threaded UNC coarse spacing enables faster assembly and superior grip in various materials
• Flat head with standard 82° countersink offers a flush, clean finish for aesthetic and safety requirements
• Compliance with ASME B18.3, RoHS 3, and REACH guarantees quality, safety, and environmental standards for industrial use

Professional Applications & Engineering Value

This 316 stainless steel flat head screw is engineered to address critical challenges in demanding industrial settings, such as marine, chemical processing, and outdoor infrastructure. The passivated finish enhances its inherent corrosion resistance, preventing premature failure in humid or corrosive environments. With a coarse UNC thread and Class 3A fit, it ensures rapid, secure fastening in metals, plastics, and composites, reducing assembly time and maintenance costs. The 1/4" hex drive facilitates high-torque installation without slippage, while the flat head design sits flush to avoid protrusions, making it ideal for machinery, structural frames, and equipment where durability and reliability are paramount.

Specification Summary & Compliance

This screw adheres to ASME B18.3 specifications, with precise dimensions including a 7/16"-14 UNC thread, 1-1/2" length, and Class 3A thread fit for tight tolerances. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), ensuring it meets stringent environmental and safety regulations for industrial use worldwide.