S-91263A593 3/8"-16 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 tensile strength (130,000 psi) for reliable performance in demanding industrial applications.
- Superior corrosion resistance provided by the zinc plating, extending the screw's service life.
- Precise Class 3A thread fit ensures secure, vibration-resistant connections and easier assembly.
- 82° countersink angle allows the flat head to sit flush with the material surface for a clean, professional finish.
- Fully threaded design offers maximum grip and holding power along the entire 2" length.
- Hex drive (7/32") enables high-torque installation with common tools, reducing stripping and slippage.
- Compliance with ASTM F835, RoHS 3, and REACH guarantees material quality and environmental safety for global supply chains.
Professional Applications & Engineering Value
This 3/8"-16 UNC flat head screw is engineered to solve critical fastening challenges in industrial applications. The zinc-plated alloy steel construction provides a robust barrier against rust and corrosion, which is vital for machinery and structural components exposed to harsh environments. The coarse UNC thread and Class 3A fit ensure rapid assembly and a secure, vibration-proof hold, preventing loosening in dynamic or high-stress equipment. The flat head with an 82° countersink is ideal for applications requiring a smooth, flush finish, such as in metal fabrication, automotive assemblies, and heavy-duty construction, where both aesthetic integrity and structural reliability are non-negotiable. Its fully threaded design maximizes surface contact for superior load distribution.
Specification Summary & Compliance
This screw adheres to a Class 3A thread fit for high precision and meets the ASTM F835 standard for mechanical properties. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances. The manufacturing specifications confirm a coarse thread (UNC), a right-hand thread direction, and a standard flat head profile.
