S-91205A627 3/8"-24 x 1 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 permanent nylon patch thread locker that maintains secure fastening from -70° to 250°F, reducing maintenance needs in dynamic environments.
- Exceptional tensile strength of 170,000 psi from alloy steel construction, providing reliable performance under high-stress loads.
- Precise Class 3A thread fit ensures tight tolerances and superior engagement in fine-threaded applications, minimizing loosening risks.
- Durable black-oxide coating on alloy steel offers corrosion resistance and a non-reflective finish, ideal for harsh industrial settings.
- Standard hex socket drive (5/16") allows for easy installation with common tools, enhancing assembly efficiency and reducing stripping.
- Full threading along the 1-1/4" length enables adjustable positioning and consistent clamping force across the entire fastener.
- High hardness (Rockwell C37) combined with fine UNF threads resists wear and deformation, extending service life in repetitive use.
Professional Applications & Engineering Value
Engineered for demanding industrial applications, these socket head cap screws with nylon patch thread locker address critical challenges in machinery, automotive, and aerospace assemblies where vibration-induced loosening can compromise safety. The black-oxide alloy steel provides a robust barrier against corrosion, while the Class 3A UNF fine threads deliver precise fit in high-tolerance components, reducing the risk of thread damage during installation. With a 170,000 psi tensile strength and stable performance across a wide temperature range (-70° to 250°F), these screws ensure long-term reliability in heavy-duty fastening, supporting efficient maintenance and reducing downtime in production lines.
Specification Summary & Compliance
This product features a 3/8"-24 UNF fine thread with Class 3A fit for high precision, manufactured in accordance with ASME B18.3 and ASTM A574 specifications. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material integrity for global industrial use.
