S-91781A065 1-64 x 3/16" ASME B18.6.3 Stainless Steel Slotted Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance thanks to 18-8 Stainless Steel construction and passivated finish, ideal for harsh environments
• Exceptional mechanical strength with 80,000 psi tensile strength and Rockwell B80 hardness for reliable, long-term performance
• Precise and secure fastening ensured by Class 2A thread fit and UNC coarse threads for easier assembly and vibration resistance
• Flush, low-profile installation with standard flat head and 82° countersink angle, minimizing protrusion in assembled components
• Broad industrial compatibility with fully threaded design and right-hand thread direction, suitable for diverse assembly needs
• Simplified manual installation and removal using standard slotted drive, requiring only basic tools
• Regulatory peace of mind with compliance to ASME B18.6.3, RoHS 3, and REACH, ensuring safety and environmental standards are met

Professional Applications & Engineering Value

This 1-64 UNC Flat Head Slotted Screw is engineered to address critical challenges in industrial assembly, such as component corrosion, mechanical stress, and regulatory adherence. The 18-8 Stainless Steel material, enhanced by a passivated finish, provides excellent resistance to oxidation and chemical exposure, making it suitable for applications in electronics, machinery, and outdoor equipment. Its fully threaded design and coarse UNC threads ensure rapid installation and strong holding power, reducing the risk of loosening under vibration. The flat head with 82° countersink allows for a seamless fit, preventing snagging and maintaining aerodynamic or aesthetic surfaces. These features, combined with high tensile strength, make it a reliable choice for engineers seeking durability and compliance in demanding environments.

Specification Summary & Compliance

This screw adheres to precise dimensional standards, including Class 2A thread fit for consistent engagement and UNC coarse threading with a 1-64 size. Manufacturing follows ASME B18.6.3 specifications, ensuring uniformity and reliability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), confirming it is free from hazardous substances and safe for industrial use.