S-90729A111 6-32 x 3/8" Stainless Steel Hex Drive Flat Head Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with 316 stainless steel material and passivated finish, ideal for harsh environments and prolonged outdoor use.
• Superior tensile strength of 70,000 psi ensures reliable load-bearing capacity and structural integrity in demanding applications.
• Precise Class 3A thread fit provides tighter tolerances for secure fastening, reducing the risk of loosening under vibration.
• Fully threaded design offers consistent engagement along the entire length, enhancing grip and distribution of stress.
• 100° countersink angle with undercut flat head allows for a flush, low-profile installation, minimizing protrusion and improving aesthetics.
• Hex drive (5/64") enables easy installation and high torque application, reducing slippage and tool wear.
• Compliance with RoHS 3 and REACH regulations ensures environmental safety and meets industrial standards for hazardous substance restrictions.

Professional Applications & Engineering Value

This 316 stainless steel flat head screw is engineered to address common industrial challenges, such as corrosion in marine, chemical, or high-moisture settings. The passivated finish enhances surface durability, while the UNC coarse thread and Class 3A fit provide reliable fastening in materials where vibration resistance is critical. Its fully threaded design ensures maximum holding power, making it ideal for assembly lines, machinery, and electronic enclosures. The flat head with undercut allows for seamless integration into countersunk holes, reducing aerodynamic drag and improving safety in automated systems. With a Rockwell B70 hardness, it maintains integrity under stress, offering long-term value in industrial screw applications where replacement costs and downtime are concerns.

Specification Summary & Compliance

This screw adheres to precise dimensional standards, including a Class 3A thread fit for tight tolerance and UNC coarse threading with a 6-32 size. Key specifications include a length of 3/8", head diameter of 0.307", and a 100° countersink angle. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from restricted substances and suitable for global industrial use. Manufactured to high-quality benchmarks, it meets requirements for tensile strength and hardness without additional certifications like ASME.