S-92703A132 1/4"-20 x 5/8" ASME B18.3 Stainless Steel Torx Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 Stainless Steel and passivated finish, ideal for harsh industrial environments.
• Enhanced torque transmission and reduced cam-out via the Torx Plus IP30 drive, ensuring secure fastening and tool longevity.
• High-strength reliability with 60,000 psi tensile strength and Rockwell B70 hardness for demanding applications.
• Precise, secure thread engagement thanks to UNC coarse threading and Class 3A fit, minimizing loosening under vibration.
• Flush, low-profile installation with a standard 82° countersink angle and flat head design for smooth surfaces.
• Full-threaded design provides consistent holding power along the entire 5/8" length for uniform clamping force.
• Compliance with major industry standards including ASME B18.3, RoHS 3, and REACH, ensuring safety and regulatory adherence.

Professional Applications & Engineering Value

This 1/4"-20 x 5/8" flat head screw is engineered to address critical challenges in industrial assembly, where vibration resistance, material integrity, and precise fit are paramount. Constructed from 18-8 Stainless Steel and featuring a passivated finish, it offers exceptional corrosion resistance, making it suitable for outdoor, marine, or chemical-exposed settings. The Torx Plus drive (IP30) minimizes slippage and tool wear, while the UNC coarse thread and Class 3A fit ensure quick installation and reliable performance in high-stress applications like machinery, automotive, and electronics. Its fully threaded design and 82° countersink enable seamless integration into components requiring a flush finish, reducing the risk of snagging and improving aesthetic appeal.

Specification Summary & Compliance

This screw adheres to precise dimensional standards, including Class 3A thread fit for tight tolerances and UNC coarse threading (1/4"-20). It meets ASME B18.3 specifications for consistency and reliability. Additionally, it is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and safe for various industrial and consumer applications.