S-91253A596 3/4"-10 x 6" ASTM F835 Alloy Steel Hex Drive Flat Head Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with black-oxide coating, ideal for harsh industrial environments
• Superior load-bearing capacity with 130,000 psi tensile strength for demanding structural applications
• Precise thread engagement with Class 3A fit ensuring reliable, vibration-resistant connections
• Optimized head design with 82° countersink angle for flush mounting and clean aesthetic finish
• Enhanced installation efficiency through 1/2" hex drive for high-torque applications
• Long-term reliability with Rockwell C37 hardness providing excellent wear resistance
• Regulatory compliance assurance meeting ASTM F835, RoHS 3, and REACH standards

Professional Applications & Engineering Value

These 3/4"-10 UNC flat head screws deliver critical engineering solutions where high tensile strength and corrosion resistance are paramount. The black-oxide alloy steel construction combined with Class 3A thread fit ensures secure fastening in heavy machinery, structural steel connections, and industrial equipment assembly. The partially threaded design provides optimal clamping force distribution, while the 82° countersink angle creates seamless surface integration. These hex drive screws are engineered to withstand extreme vibration and loading conditions in construction, manufacturing, and infrastructure projects where failure is not an option.

Specification Summary & Compliance

Manufactured to precise inch system measurements with Class 3A thread fit and UNC coarse threading for superior engagement. These flat head screws comply with ASTM F835 specifications for mechanical properties and meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards. The 6" length with 2" minimum thread length provides versatile fastening capability across various material thicknesses.