S-91253A094 3-48 x 3/8" 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 ensures reliable performance in high-stress industrial applications.
- Superior corrosion resistance from the black-oxide finish on alloy steel, extending service life in harsh environments.
- Precise Class 3A thread fit guarantees secure, vibration-resistant connections and reduces assembly issues.
- Fully threaded design provides maximum grip and load distribution along the entire length.
- 82° countersink angle allows for a flush, low-profile installation, enhancing aesthetics and safety.
- Hex drive (1/16") offers easy installation with standard tools, minimizing slippage and damage.
- Compliance with ASTM F835, RoHS 3, and REACH ensures environmental safety and meets rigorous industry standards.
Professional Applications & Engineering Value
Engineered for demanding industrial settings, these 3-48 UNC flat head screws in black-oxide alloy steel address critical challenges like corrosion and mechanical failure. The coarse thread spacing and Class 3A thread fit provide excellent holding power in materials prone to stripping, while the fully threaded design ensures uniform stress distribution. Ideal for machinery, automotive, and electronics assemblies, these screws deliver high tensile strength and durability, reducing maintenance needs and downtime. The hex drive facilitates quick, secure installation, making them a reliable choice for high-volume production lines where precision and efficiency are paramount.
Specification Summary & Compliance
This screw features a 3-48 UNC thread with Class 3A fit for tight tolerances, coarse thread spacing, and right-hand thread direction. It meets ASTM F835 specifications for mechanical properties and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring no hazardous substances are used. Dimensions include a length of 3/8", head diameter of 0.226", and hardness of Rockwell C39, providing consistent performance in standardized applications.
