S-99926A121 8-32 x 1" Stainless Steel Hex Drive Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction and passivated finish, ensuring long-term reliability in harsh environments
• Exceptional mechanical strength with 70,000 psi tensile strength and Rockwell B70 hardness for demanding industrial applications
• Precision thread engagement through Class 3A thread fit and UNC coarse threading, providing secure fastening and vibration resistance
• Optimized flush mounting with 100° countersink angle and undercut flat head profile for seamless surface integration
• Enhanced installation efficiency using standard 5/64" hex drive for secure tool engagement and reduced slippage
• Reliable partial threading design allowing precise control over clamping force in specific assembly requirements
• Full regulatory compliance with RoHS 3 and REACH standards, ensuring environmental and safety requirements are met

Professional Applications & Engineering Value

These 8-32 UNC flat head screws deliver exceptional engineering value through their specialized design and 18-8 stainless steel composition. The combination of Class 3A thread fit and coarse thread spacing ensures rapid installation while maintaining superior holding power in vibration-prone applications. The passivated finish significantly enhances corrosion resistance, making these flat head screws ideal for industrial equipment, machinery assemblies, and outdoor applications where environmental exposure is a concern. The undercut head profile and 100° countersink angle provide flush mounting capabilities that prevent surface protrusion while distributing clamping force efficiently. With 70,000 psi tensile strength and Rockwell B70 hardness, these fasteners withstand substantial mechanical stress, making them particularly valuable for critical assemblies in manufacturing, automotive, and aerospace sectors where reliability cannot be compromised.

Specification Summary & Compliance

This 8-32 UNC flat head screw features precision Class 3A thread fit with coarse thread spacing and right-hand threading. The fastener maintains dimensional accuracy with a 1" length and partial threading configuration. Manufacturing compliance includes adherence to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring these components meet current industry standards for hazardous substance restrictions and chemical safety protocols.