S-91253A834 3/4"-16 x 2 1/2" 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 tensile strength with 130,000 psi rating ensures reliable performance in high-stress industrial applications
- Precise Class 3A thread fit provides superior engagement and vibration resistance in critical assemblies
- Black-oxide alloy steel construction offers enhanced corrosion resistance and durability in demanding environments
- Full threading design allows for maximum grip length and uniform load distribution across the entire fastener
- 82° countersink angle enables flush mounting for clean, professional finishes in precision applications
- Rockwell C37 hardness maintains structural integrity under repeated stress and prevents thread deformation
- 1/2" hex drive compatibility ensures secure tool engagement and efficient installation with standard industrial tools
Professional Applications & Engineering Value
This 3/4"-16 UNF flat head socket cap screw delivers critical engineering solutions for industrial applications requiring both high strength and precision fit. The black-oxide alloy steel construction combined with Class 3A thread fit addresses common challenges of vibration loosening and material fatigue in heavy machinery, automotive assemblies, and structural frameworks. The fine thread spacing and fully threaded design provide superior clamping force distribution, making it ideal for applications where joint integrity is paramount. The 82° countersink angle ensures seamless integration into precision components, while the hex drive style facilitates quick installation in confined spaces common in manufacturing and equipment maintenance scenarios.
Specification Summary & Compliance
This fastener features UNF thread form with Class 3A thread fit precision and fine thread spacing for superior engagement. Manufactured to ASTM F835 specifications with dimensional accuracy in the inch system. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across industrial sectors. The combination of Rockwell C37 hardness and 130,000 psi tensile strength meets rigorous industrial standards for heavy-duty fastening applications.
