S-91251A747 2-64 x 1/4" 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 under high-stress conditions, reducing the risk of fastener failure
- Precision Class 3A thread fit provides superior engagement and vibration resistance in critical assemblies
- Black-oxide coating on alloy steel offers enhanced corrosion resistance for extended service life in industrial environments
- Fine UNF thread spacing delivers improved holding power and better adjustment precision compared to coarse threads
- Standard socket head profile with 5/64" hex drive allows for easy installation in confined spaces with common tools
- Full threading along the 1/4" length enables maximum grip and flexibility in various mounting scenarios
- Rockwell C37 hardness rating maintains thread integrity and prevents stripping during repeated installation cycles
Professional Applications & Engineering Value
This 2-64 UNF Socket Head Cap Screw delivers critical engineering advantages where space constraints and vibration resistance are paramount. The black-oxide alloy steel construction combined with fine thread spacing addresses common industrial challenges of corrosion and loosening under dynamic loads. The fully threaded design ensures consistent clamping force distribution across the entire engagement length, making it ideal for precision equipment, aerospace components, and automotive assemblies where Class 3A thread fit guarantees exacting tolerances. The socket head configuration with standardized drive size facilitates efficient installation in hard-to-reach areas while maintaining the structural integrity required for high-performance applications.
Specification Summary & Compliance
Manufactured to ASTM A574 specifications with Class 3A thread fit precision and UNF fine thread standards. This inch-system fastener features exact dimensional control with 1/4" length and 9/64" head diameter. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe usage across global industrial markets.
