S-91253A240 10-24 x 3/8" ASME B18.3 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 under high-stress conditions, reducing the risk of fastener failure.
- Superior corrosion resistance from the black-oxide finish on alloy steel extends service life in harsh industrial environments.
- Precise Class 3A thread fit provides tighter tolerances for secure, vibration-resistant connections in critical assemblies.
- Hex drive design allows for easy installation and high torque application, minimizing slippage and tool wear.
- Full threading along the 3/8" length ensures maximum grip and uniform load distribution across the fastened materials.
- 82° countersink angle enables a flush, low-profile finish that enhances aesthetics and prevents snagging.
- Compliance with ASME B18.3 and ASTM F835 guarantees consistent quality and interoperability in regulated applications.
Professional Applications & Engineering Value
These 10-24 UNC flat head screws are engineered to address common industrial challenges such as vibration loosening and environmental degradation. The black-oxide alloy steel construction offers enhanced durability and corrosion resistance, making them ideal for machinery, automotive, and electronic enclosures where exposure to moisture or chemicals is a concern. The coarse thread spacing and Class 3A thread fit provide superior holding power in softer materials or applications requiring frequent disassembly. With a hex drive for secure tool engagement, these screws streamline installation in tight spaces, reducing assembly time and improving overall structural integrity in industrial fastening systems.
Specification Summary & Compliance
This product adheres to precise dimensional standards, including UNC thread form with Class 3A thread fit for high accuracy. It meets ASME B18.3 and ASTM F835 specifications, ensuring consistent performance in mechanical applications. Additionally, it is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, supporting environmental and safety regulations for global supply chains.
