S-91253A928 1"-8 x 6" 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 corrosion resistance with black-oxide coating, extending service life in demanding industrial environments.
- Superior tensile strength of 130,000 psi ensures reliable performance under high-stress conditions, reducing the risk of fastener failure.
- Precise Class 3A thread fit provides tighter tolerances for secure, vibration-resistant assemblies in critical applications.
- Coarse 1"-8 UNC threading enables faster installation and reduced cross-threading risks, improving assembly efficiency.
- Partially threaded design allows for controlled clamping force, ideal for materials requiring specific grip range.
- 5/8" hex drive offers high torque capability and easy installation with standard tools, minimizing slippage.
- 82° countersink angle ensures a flush, professional finish, enhancing both safety and aesthetics in assembled products.
Professional Applications & Engineering Value
Engineered for heavy-duty industrial applications, these Black-Oxide Alloy Steel Flat Head Screws deliver outstanding durability where high tensile strength and corrosion resistance are paramount. The 1"-8 UNC coarse thread design is particularly effective in soft materials or applications requiring rapid assembly, while the Class 3A thread fit maintains precision in high-vibration environments such as machinery, construction, and transportation equipment. The combination of Rockwell C37 hardness and 130,000 psi tensile strength ensures these hex drive screws withstand extreme mechanical stresses without compromising integrity, making them ideal for structural fastening, equipment manufacturing, and other demanding engineering scenarios where reliability cannot be compromised.
Specification Summary & Compliance
This flat head screw features precise Class 3A thread fit with 1"-8 UNC coarse threading and partial threading up to a minimum of 2-1/2". Manufactured to meet ASTM F835 specifications for mechanical properties and dimensional accuracy. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use in various industrial sectors.
