S-91251A148 6-32 x 1/2" ASTM A574 Alloy Steel Socket Head Screws
Alloy Steel 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 (170,000 psi) ensures reliable performance under high-stress conditions, reducing failure risks in demanding applications.
- Black-oxide coating on alloy steel provides corrosion resistance and a durable, non-reflective finish suitable for harsh industrial environments.
- Class 3A thread fit delivers precise, tight-tolerance engagement for secure fastening and vibration resistance in critical assemblies.
- Hex socket drive (7/64") allows for high-torque installation with standard tools, minimizing stripping and improving assembly efficiency.
- Fully threaded 6-32 UNC coarse design enables quick installation and strong holding power across the entire length.
- Rockwell C37 hardness maintains structural integrity and wear resistance, extending service life in repetitive or high-load scenarios.
- Compliance with ASTM A574, RoHS 3, and REACH guarantees material consistency and environmental safety for global industrial supply chains.
Professional Applications & Engineering Value
This black-oxide alloy steel socket head cap screw is engineered to address common industrial challenges such as vibration loosening, corrosion, and high mechanical stress. The 6-32 UNC coarse thread and Class 3A fit ensure precise alignment and secure fastening in machinery, automotive, and electronics assemblies, where tolerance control is critical. The hex drive design facilitates easy installation in confined spaces, while the fully threaded rod provides uniform clamping force. Ideal for industrial screws applications requiring durability and compliance, it supports maintenance efficiency and reduces downtime in production environments.
Specification Summary & Compliance
This screw adheres to UNC thread standards with a Class 3A thread fit for high precision. Manufacturing follows ASTM A574 specifications, ensuring consistent quality and performance. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting environmental and safety requirements for industrial use.
