S-93401A560 5/16"-18 x 1" ASTM F835, MS24667-41 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 cadmium plating, extending service life in harsh industrial environments
- Superior load-bearing capability from 140,000 psi tensile strength, preventing fastener failure under high stress
- Precision thread engagement with Class 3A fit, ensuring reliable, vibration-resistant connections
- Efficient installation using a standard 3/16" hex drive, reducing assembly time and tool wear
- Secure flush mounting with an 82° countersink angle, providing a smooth surface finish and improved aerodynamics
- Full thread coverage along the 1" length, offering maximum grip and adjustment flexibility
- Certified material integrity with Rockwell C39 hardness, maintaining dimensional stability under load
Professional Applications & Engineering Value
These cadmium-plated alloy steel flat head screws deliver critical performance in demanding applications where corrosion resistance and high tensile strength are non-negotiable. The UNC coarse threading and Class 3A thread fit enable rapid assembly in metal frameworks, machinery, and structural components, resisting loosening from vibration. The 82° countersink seamlessly integrates into precision-machined surfaces, eliminating protrusions in aerospace, automotive, and heavy equipment. Manufactured to ASTM F835, they provide engineers with a reliable, specification-compliant solution for high-stress industrial fastening, reducing maintenance cycles and enhancing operational safety.
Specification Summary & Compliance
This product adheres to ASTM F835 specification (MS24667-41) with Class 3A thread fit for precise, high-strength assemblies. It features UNC coarse threads (5/16"-18) and is fully threaded over a 1" length. The cadmium-plated alloy steel construction ensures compliance with industrial durability standards, supported by a 140,000 psi tensile strength and Rockwell C39 hardness. The 82° flat head profile and 3/16" hex drive are designed for compatibility with standard tools and countersunk applications.
