S-91253A843 3/4"-10 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
- Exceptional load-bearing capacity with 130,000 psi tensile strength for reliable performance in high-stress industrial environments.
- Superior corrosion resistance provided by the black-oxide finish on alloy steel, extending service life in demanding conditions.
- Precise thread engagement with Class 3A thread fit ensuring secure fastening and vibration resistance in critical assemblies.
- Efficient installation through the 1/2" hex drive design, allowing for high torque application and reduced assembly time.
- Optimal flush mounting with 82° countersink angle and standard flat head profile for seamless surface integration.
- Enhanced durability from Rockwell C37 hardness, maintaining structural integrity under repeated mechanical stress.
- Broad compatibility with UNC coarse threading and full threading along the 2" length for versatile application across various materials.
Professional Applications & Engineering Value
Engineered for heavy-duty industrial applications, these 3/4"-10 UNC flat head screws address critical challenges in machinery assembly, structural frameworks, and equipment manufacturing. The black-oxide alloy steel construction combats rust and wear in harsh environments, while the Class 3A thread fit eliminates loosening under dynamic loads. The fully threaded design ensures maximum grip in thick materials, and the 82° countersink provides a smooth, flush finish that prevents snagging. Ideal for sectors requiring high tensile strength and regulatory compliance, these screws deliver consistent performance in automotive, construction, and industrial machinery where reliability is paramount.
Specification Summary & Compliance
This product meets ASTM F835 specifications for mechanical properties and dimensional accuracy, with UNC coarse threads and Class 3A thread fit ensuring precise tolerances. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming adherence to environmental and safety standards for industrial use.
