S-90729A211 8-32 x 3/8" Stainless Steel Hex Drive Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction and passivated finish for extended service life in harsh environments
• Exceptional mechanical strength delivering 70,000 psi tensile strength and Rockwell B70 hardness for reliable load-bearing performance
• Precision thread engagement with Class 3A fit ensuring secure, vibration-resistant fastening in critical applications
• Optimized head design featuring undercut flat profile and 100° countersink angle for flush mounting and reduced stress concentration
• Enhanced installation efficiency with 5/64" hex drive providing positive torque transmission and reduced cam-out risk
• Full threading coverage along the 3/8" length for maximum grip and uniform stress distribution
• Regulatory compliance assurance meeting RoHS 3 and REACH standards for environmentally responsible manufacturing

Professional Applications & Engineering Value

These 8-32 UNC flat head screws in 316 stainless steel provide critical solutions for industries where corrosion resistance and mechanical reliability are paramount. The combination of Class 3A thread fit and passivated finish ensures consistent performance in chemical processing, marine equipment, and food processing machinery where exposure to corrosive agents is common. The undercut flat head design with 100° countersink angle allows for flush mounting in precision assemblies, while the coarse thread spacing facilitates quicker installation in production environments. Engineered for demanding industrial applications, these fully threaded fasteners maintain integrity under vibration and thermal cycling, making them ideal for equipment requiring long-term maintenance-free operation.

Specification Summary & Compliance

Manufactured to precise dimensional standards with Class 3A thread fit tolerance and UNC thread form. The 8-32 thread size features coarse spacing and right-hand orientation with full threading along the 3/8" length. Head diameter maintains tight tolerance of -0.01" to 0" from the specified 0.359" dimension. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental responsibility and material safety in industrial supply chains.