S-91205A144 6-32 x 1/4" ASME B18.3, ASTM A574 Alloy Steel Thread-Locking Socket Head Screws
Alloy Steel Thread-Locking 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
- Vibration-resistant locking with nylon patch thread locker prevents loosening in high-stress environments
- Exceptional tensile strength of 170,000 psi ensures reliable performance under heavy loads
- Corrosion-resistant black-oxide finish on alloy steel provides durable protection in harsh conditions
- Precise Class 3A thread fit delivers superior engagement and consistent clamping force
- Wide temperature tolerance from -70° to 250°F maintains performance across extreme operating conditions
- Standard hex drive compatibility with 7/64" key enables easy installation in confined spaces
- Industry-standard compliance ensures consistent quality and interchangeability across applications
Professional Applications & Engineering Value
These black-oxide alloy steel socket head cap screws with nylon patch thread locker solve critical fastening challenges in industrial applications where vibration and thermal cycling cause conventional fasteners to fail. The UNC coarse thread design provides rapid assembly while the Class 3A thread fit ensures precise engagement in tapped holes. Engineered for machinery, automotive, and electronic enclosures, these socket head screws maintain their locking capability across a broad temperature range from -70° to 250°F, preventing costly downtime in demanding environments. The combination of 170,000 psi tensile strength and Rockwell C37 hardness delivers reliable performance where structural integrity is paramount.
Specification Summary & Compliance
Manufactured to exacting ASME B18.3 specifications with Class 3A thread fit tolerance for superior dimensional accuracy. Features 6-32 UNC coarse threads with right-hand orientation and standard socket head profile. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global markets. Meets material specifications per ASTM A574 for consistent quality and performance reliability.
