S-90117A113 2-56 x 3/8" ASME B18.3 Alloy Steel Wire-Lockable Socket Head Screws
Alloy Steel Wire-Lockable 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 in high-stress applications, reducing the risk of fastener failure.
- Corrosion-resistant Black-Oxide coating on alloy steel enhances durability and longevity, even in challenging industrial environments.
- Precision Class 3A thread fit provides superior engagement and vibration resistance, minimizing loosening in dynamic assemblies.
- Hex socket drive design allows for high-torque installation and easy access in confined spaces, improving assembly efficiency.
- Fully threaded body offers consistent clamping force along the entire length, ensuring secure fastening across various material thicknesses.
- Compliance with ASME B18.3 guarantees dimensional accuracy and interchangeability, streamlining procurement and inventory management.
- RoHS 3 and REACH compliance ensures environmental safety and regulatory adherence for global supply chains.
Professional Applications & Engineering Value
Engineered for demanding industrial applications, these socket head cap screws with 2-56 UNC coarse threads and Black-Oxide alloy steel construction address critical engineering challenges. The Class 3A thread fit and right-hand thread direction provide excellent resistance to vibration-induced loosening in machinery, automotive assemblies, and precision equipment. The hex drive facilitates secure installation with standard tools, reducing assembly time while maintaining high tensile strength under load. Ideal for applications requiring reliable fastening in tight spaces, these screws ensure long-term performance in environments where corrosion resistance and dimensional precision are paramount.
Specification Summary & Compliance
This product features a 2-56 UNC thread size with Class 3A thread fit and coarse thread spacing, ensuring precise dimensional accuracy per ASME B18.3 standards. Manufactured from alloy steel with a Black-Oxide surface treatment, it meets Rockwell C37 hardness and 170,000 psi tensile strength requirements. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, supporting environmentally responsible manufacturing and supply chain practices.
