S-90117A119 6-32 x 1/4" ASME B18.3 Alloy Steel Wire-Lockable Socket Head Screws
Alloy Steel Wire-Lockable Socket 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 170,000 psi ensures reliable performance under high-stress conditions, reducing the risk of fastener failure.
- Class 3A thread fit provides superior precision and tighter tolerances for secure, vibration-resistant assemblies in demanding applications.
- Black-oxide finish on alloy steel offers enhanced corrosion resistance and a durable, low-glare surface ideal for industrial environments.
- Rockwell C37 hardness delivers excellent wear resistance and long-term durability, minimizing wear and tear during installation and use.
- Coarse UNC threading allows for quicker assembly and disassembly, improving efficiency in maintenance and production lines.
- Hex socket drive design enables high torque application with standard tools, ensuring secure fastening without stripping.
- Fully threaded shank provides consistent clamping force along the entire length, ideal for applications requiring uniform load distribution.
Professional Applications & Engineering Value
This black-oxide alloy steel socket head cap screw is engineered to address common industrial challenges such as vibration loosening and corrosion in machinery assembly. The 6-32 UNC coarse thread and Class 3A fit ensure precise engagement in metals and plastics, reducing the need for re-tightening in dynamic environments. With a Rockwell C37 hardness and 170,000 psi tensile strength, it withstands heavy loads and repetitive stress in automotive, aerospace, and manufacturing equipment. The hex drive allows for easy installation in confined spaces, while the black-oxide surface treatment extends service life by resisting rust and wear, making it a reliable choice for high-performance industrial fasteners.
Specification Summary & Compliance
This socket head cap screw meets ASME B18.3 specifications for dimensional accuracy and performance, with a Class 3A thread fit ensuring tight tolerances. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its safety and environmental standards. Manufactured in the inch system, it features a right-hand coarse UNC thread and is fully threaded for consistent application across various industrial uses.
