S-91205A142 6-32 x 3/16" 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
- Superior vibration resistance with nylon patch thread locking that maintains secure fastening from -70° to 250°F
- Exceptional tensile strength of 170,000 psi ensures reliable performance in high-stress applications
- Precise Class 3A thread fit provides consistent engagement and reduced risk of cross-threading
- Corrosion-resistant black-oxide finish on alloy steel extends service life in demanding environments
- Optimized hex drive design with 7/64" drive size allows for high torque application and secure installation
- Full thread coverage along the 3/16" length ensures maximum grip and load distribution
- Rockwell C37 hardness delivers excellent wear resistance and durability
Professional Applications & Engineering Value
These black-oxide alloy steel socket head cap screws with 6-32 UNC coarse threads and nylon patch locking provide critical solutions for industrial applications where vibration resistance and precise fastening are paramount. The combination of Class 3A thread fit and fully threaded design ensures reliable performance in machinery, automotive assemblies, and electronic enclosures where loosening under dynamic loads could cause equipment failure. The 170,000 psi tensile strength and temperature-resistant thread locker make these screws ideal for applications experiencing thermal cycling or mechanical stress, while the standard socket head profile with hex drive facilitates installation in confined spaces common in manufacturing and maintenance operations.
Specification Summary & Compliance
This socket head cap screw features precision 6-32 UNC coarse threads with Class 3A fit for superior dimensional accuracy and consistent performance. Manufactured to ASME B18.3 specifications using ASTM A574 alloy steel, these fasteners maintain strict quality standards. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industrial sectors while meeting international regulatory requirements for hazardous substances.
