S-91263A540 10-32 x 1/4" ASTM F835 Alloy Steel Hex Drive Flat Head Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength of 130,000 PSI ensures reliable performance in high-stress industrial applications
• Precision Class 3A thread fit provides superior engagement and vibration resistance in critical assemblies
• Zinc-plated alloy steel construction offers excellent corrosion resistance for extended service life
• 82° countersink angle with flat head design enables flush mounting in precision machining applications
• Hex drive configuration delivers secure tool engagement and prevents stripping during installation
• Full threading along the 1/4" length maximizes grip strength and load distribution
• Rockwell C39 hardness rating maintains thread integrity under repeated assembly cycles

Professional Applications & Engineering Value

Engineered for precision industrial applications, these 10-32 UNF flat head screws with fine thread spacing provide superior fastening solutions where space constraints and vibration resistance are critical. The zinc-plated alloy steel construction combined with Class 3A thread fit ensures reliable performance in automotive assemblies, electronic enclosures, and machinery where right-hand threading facilitates standard installation procedures. The 82° countersink angle allows for seamless integration into precision-machined components, while the hex drive style prevents cam-out during high-torque applications, making these inch fasteners ideal for maintenance, repair, and OEM operations requiring consistent, repeatable fastening performance.

Specification Summary & Compliance

Manufactured to exacting inch system dimensions with Class 3A thread fit tolerance and UNF thread type specifications. These fully threaded screws comply with ASTM F835 manufacturing standards and meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental compliance requirements, ensuring they are suitable for global industrial applications and restricted substance regulations.