S-91263A548 10-32 x 1" ASTM F835 Alloy Steel Hex Drive Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc plating for extended service life in demanding environments
• Exceptional tensile strength of 130,000 PSI ensures reliable performance under high-stress conditions
• Precise Class 3A thread fit provides superior engagement and vibration resistance in fine-thread applications
• Rockwell C39 hardness maintains structural integrity and prevents stripping during installation
• 82° countersink angle enables flush mounting for streamlined assemblies and improved aesthetics
• Fully threaded design maximizes grip length and distributes load evenly across the fastener
• Hex drive compatibility allows for high-torque installation with standard industrial tools

Professional Applications & Engineering Value

These 10-32 UNF flat head screws deliver critical engineering advantages for precision assemblies requiring reliable fastening solutions. The zinc-plated alloy steel construction provides essential corrosion protection in industrial environments, while the Class 3A thread fit with fine thread spacing ensures secure fastening in vibration-prone applications. The hex drive configuration enables high-torque installation without cam-out, making these flat head screws ideal for machinery, electronic enclosures, and automotive components where flush mounting and structural integrity are paramount. The combination of 130,000 PSI tensile strength and Rockwell C39 hardness guarantees these fasteners maintain clamping force under extreme operational stresses.

Specification Summary & Compliance

Manufactured to exacting inch system dimensions with Class 3A thread fit tolerance and UNF thread standard. These fully threaded screws feature 82° countersink angle and comply with ASTM F835 specifications for mechanical properties. Environmental compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring suitability for global industrial applications.