S-91253A849 3/4"-10 x 3 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 of 130,000 psi provides reliable performance in demanding applications, reducing the risk of fastener failure
- Superior corrosion resistance from black-oxide coating extends service life in harsh industrial environments
- Precision Class 3A thread fit ensures consistent engagement and vibration resistance for secure fastening
- Heavy-duty hex drive design with 1/2" drive size enables high-torque installation without stripping
- Rockwell C37 hardness rating maintains structural integrity under repeated stress and load conditions
- ASTM F835 compliance guarantees consistent quality and performance meeting industrial standards
- Environmental regulation compliance with RoHS 3 and REACH ensures safe use across global markets
Professional Applications & Engineering Value
This 3/4"-10 UNC flat head screw delivers critical engineering advantages for industrial applications where vibration resistance and corrosion protection are paramount. The black-oxide alloy steel construction combined with Class 3A thread fit provides exceptional clamping force retention in machinery, structural assemblies, and heavy equipment. The partially threaded design allows for precise tension control while the coarse UNC thread facilitates quicker installation in tough materials. The 82° countersink angle ensures flush mounting in standard applications, making these industrial screws ideal for manufacturing, construction, and automotive sectors requiring reliable fastening solutions that withstand extreme operational conditions.
Specification Summary & Compliance
This fastener features precision Class 3A thread fit with 3/4"-10 UNC coarse threading and 2" minimum thread length. Manufactured to ASTM F835 specifications with Rockwell C37 hardness and 130,000 psi tensile strength. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across industrial applications.
