S-90117A540 1/4"-20 x 3/4" 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 industrial applications, reducing failure risks.
- Black-oxide coating on alloy steel provides corrosion resistance and durability, extending service life in harsh environments.
- Class 3A thread fit offers precise, secure fastening with minimal backlash, ideal for critical assemblies requiring tight tolerances.
- Hex socket drive design allows for easy installation in confined spaces with standard tools, improving assembly efficiency.
- Coarse UNC threading enables quick engagement and disassembly, saving time in maintenance and repair operations.
- Full compliance with ASME B18.3 standards guarantees consistent quality and interoperability, ensuring reliable integration into existing systems.
- RoHS 3 and REACH compliance supports environmental and safety regulations, making it suitable for global supply chains.
Professional Applications & Engineering Value
This 1/4"-20 UNC Socket Head Cap Screw is engineered from black-oxide alloy steel to address common industrial challenges, such as vibration loosening and corrosion in demanding environments. With a Rockwell C37 hardness and 170,000 psi tensile strength, it provides robust fastening for machinery, automotive, and aerospace applications where high load-bearing capacity is essential. The coarse thread design ensures rapid installation and removal, reducing downtime in assembly lines. Its hex drive and fully threaded configuration offer versatility in tight spaces, while compliance with ASME B18.3 standards ensures reliability. Ideal for securing components in heavy-duty equipment, this screw enhances structural integrity and longevity in industrial fasteners systems.
Specification Summary & Compliance
This product features precise Class 3A thread fit with UNC coarse threading and a 1/4"-20 thread size in the inch system, ensuring dimensional accuracy per ASME B18.3 specifications. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, supporting safe and sustainable manufacturing practices.
