S-99926A111 6-32 x 5/8" Stainless Steel Hex Drive Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel and passivated finish, ensuring long-term reliability in harsh environments.
• High tensile strength of 70,000 psi and Rockwell B70 hardness for dependable load-bearing performance in demanding applications.
• Precise Class 3A thread fit and UNC coarse threading for secure, vibration-resistant fastening and easy assembly.
• Undercut flat head design with 100° countersink angle provides a flush, low-profile finish that minimizes protrusion and improves aesthetics.
• Hex drive (5/64") compatibility allows for efficient installation with standard tools, reducing assembly time and effort.
• Partial threading offers optimal grip and clamping force where full threading isn't required, enhancing versatility.
• Compliance with RoHS 3 and REACH regulations ensures environmental safety and meets global industry standards for responsible manufacturing.

Professional Applications & Engineering Value

Engineered for industrial and mechanical assemblies, these 6-32 UNC flat head screws address common challenges like corrosion, vibration loosening, and space constraints. The 18-8 stainless steel construction, combined with a passivated finish, provides exceptional resistance to rust and chemicals, making them ideal for machinery, electronics, and outdoor equipment. The undercut flat head and 100° countersink angle ensure a seamless fit in countersunk holes, reducing stress concentrations and improving structural integrity. With coarse thread spacing and Class 3A thread fit, these screws deliver reliable performance in high-vibration environments, while the partial threading allows for precise clamping in applications like panel mounting or enclosures. Their hex drive design facilitates quick installation, streamlining production processes and minimizing downtime.

Specification Summary & Compliance

This screw features a 6-32 UNC thread size with Class 3A thread fit for tight tolerances and consistent performance. It adheres to standard inch measurements, including a length of 5/8" and partial threading with a minimum thread length of 0.54". The product is manufactured to comply with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and suitable for global industrial use.