S-91251A146 6-32 x 3/8" 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 (170,000 psi) ensures reliable performance in high-stress industrial applications
- Precision Class 3A thread fit provides superior engagement and vibration resistance in demanding environments
- Black-oxide coating on alloy steel offers enhanced corrosion protection for extended service life
- Rockwell C37 hardness rating maintains structural integrity under repeated loading and extreme conditions
- Standard hex socket drive (7/64") enables secure installation with common tools while preventing cam-out
- Fully threaded 6-32 UNC coarse thread design delivers maximum grip length and faster assembly in various materials
- Comprehensive compliance certifications including ASTM A574, RoHS 3, and REACH ensure regulatory adherence
Professional Applications & Engineering Value
These black-oxide alloy steel socket head cap screws with 6-32 UNC coarse threads are engineered to address critical fastening challenges in industrial machinery, automotive assemblies, and precision equipment. The combination of 170,000 psi tensile strength and Rockwell C37 hardness provides exceptional resistance to shear forces and fatigue, making them ideal for applications where vibration loosening is a concern. The black-oxide surface treatment creates a durable barrier against corrosion while maintaining dimensional stability. The fully threaded design and Class 3A thread fit ensure consistent clamping force distribution and reliable performance in high-cycle manufacturing environments where fastener failure is not an option.
Specification Summary & Compliance
This socket head cap screw features precision 6-32 UNC coarse threads with Class 3A fit for superior dimensional accuracy. Manufactured to ASTM A574 specification for alloy steel socket head cap screws, ensuring consistent quality and performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting the latest environmental and safety standards for industrial components.
