S-91253A159 6-32 x 2" ASTM F835 Alloy Steel Hex Drive Flat Head Screws
Alloy Steel Hex Drive Flat Head Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Superior corrosion resistance with black-oxide coating on alloy steel, extending service life in demanding environments
- Exceptional tensile strength rated at 130,000 psi ensures reliable performance under high-stress applications
- Precision Class 3A thread fit provides consistent engagement and vibration resistance in assembly operations
- Optimized 82° countersink angle enables flush mounting for clean finishes and reduced snagging hazards
- Hex drive compatibility (5/64") allows high-torque installation with standard industrial tools
- Partial threading design combines secure clamping with unthreaded shank stability for structural integrity
- Full regulatory compliance with ASTM F835, RoHS 3, and REACH standards for global industrial acceptance
Professional Applications & Engineering Value
Engineered for critical industrial fastening applications, these 6-32 UNC flat head screws address common challenges in machinery assembly, electronic enclosures, and structural frameworks. The black-oxide alloy steel construction provides essential protection against oxidation while maintaining Rockwell C39 hardness for wear resistance. The coarse UNC threading ensures rapid installation in sheet metal, plastics, and composite materials, with the 2" length and partial threading offering versatile clamping range control. The hex drive system prevents cam-out during high-torque applications, making these flat head screws ideal for maintenance-critical environments where disassembly reliability is paramount.
Specification Summary & Compliance
Manufactured to ASTM F835 specifications with Class 3A thread fit tolerances for precision engagement. The UNC coarse thread (6-32) follows standardized threading protocols with 0.138" diameter and 3/4" minimum thread length. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations ensures suitability for international industrial markets and restricted substance management.
