S-91251A875 6-32 x 1 5/8" 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 of 170,000 psi ensures reliable performance in high-stress applications, reducing the risk of fastener failure.
- Superior corrosion resistance from the black-oxide finish extends service life in harsh industrial environments, minimizing maintenance needs.
- Precise Class 3A thread fit provides consistent engagement and vibration resistance, enhancing assembly integrity.
- High hardness (Rockwell C37) offers excellent wear resistance, maintaining thread integrity through repeated use.
- Partially threaded design allows for controlled clamping force and secure fastening in specific joint configurations.
- Standard hex socket drive enables easy installation with common tools, streamlining assembly processes.
- Compliance with ASTM A574 guarantees material quality and manufacturing consistency for dependable performance.
Professional Applications & Engineering Value
These 6-32 UNC thread socket head cap screws are engineered to address critical fastening challenges in demanding sectors like machinery, automotive, and heavy equipment. The black-oxide alloy steel construction provides a durable barrier against rust and oxidation, ideal for environments exposed to moisture or chemicals. With a coarse thread and Class 3A fit, they ensure quick assembly and high vibration resistance, reducing loosening in dynamic applications. The partially threaded rod allows for precise load distribution, making them suitable for components requiring unthreaded shank sections. Their high tensile strength and ASTM A574 compliance deliver reliable performance in structural and mechanical assemblies, ensuring long-term operational safety and reducing downtime.
Specification Summary & Compliance
These screws feature a 6-32 UNC coarse thread with Class 3A tolerance for precise fit, and are manufactured to ASTM A574 specifications. They are compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material restrictions are met. Dimensions include a 1-5/8" length, 7/64" hex drive, and standard socket head profile, all in inch measurements for consistent industrial use.
