S-91263A771 3/8"-24 x 1" 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 applications, reducing the risk of fastener failure.
- Superior corrosion resistance with zinc-plated alloy steel construction, extending service life in harsh industrial environments.
- Precision Class 3A fine threading provides tighter tolerances and improved vibration resistance for secure, long-lasting connections.
- High Rockwell C39 hardness offers excellent wear resistance, maintaining thread integrity through repeated use.
- 82° countersink angle and flat head design enable flush mounting, minimizing protrusion for cleaner, safer assemblies.
- Hex drive (7/32") compatibility allows for easy installation and removal with standard tools, speeding up assembly processes.
- Full threading along the 1" length ensures maximum grip and uniform load distribution across the fastened materials.
Professional Applications & Engineering Value
These 3/8"-24 UNF flat head screws are engineered to address critical challenges in industrial fastening, where vibration resistance and corrosion protection are paramount. The zinc-plated alloy steel material combats rust in humid or chemically aggressive settings, while the Class 3A fine thread design enhances grip in metals and engineered plastics, preventing loosening under dynamic loads. Ideal for machinery, automotive assemblies, and structural frameworks, these screws deliver consistent tensile strength and durability, reducing maintenance needs and downtime. Their 82° countersink and hex drive facilitate quick, flush installations in tight spaces, supporting efficient production workflows.
Specification Summary & Compliance
This product adheres to Class 3A thread fit for precise dimensional accuracy and features UNF fine threading (3/8"-24) with full threading along a 1" length. It meets ASTM F835 specifications for mechanical properties and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, ensuring safe use in regulated industries.
