S-90117A622 3/8"-16 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 applications, reducing the risk of fastener failure.
- Precision Class 3A thread fit provides superior engagement and vibration resistance, minimizing loosening in dynamic environments.
- Black-oxide coating on alloy steel offers enhanced corrosion resistance and a durable, non-reflective finish for extended service life.
- Hex socket drive design allows for high-torque installation in confined spaces, improving assembly efficiency and tool accessibility.
- Coarse UNC threads enable quick installation and are less prone to clogging in dirty or debris-filled industrial settings.
- Full threading along the 3/4" length ensures consistent clamping force and flexibility in various material thicknesses.
- Compliance with ASME B18.3, RoHS 3, and REACH guarantees adherence to industry standards and environmental regulations for safe, global use.
Professional Applications & Engineering Value
This Black-Oxide Alloy Steel Socket Head Cap Screw is engineered to address critical challenges in heavy-duty machinery, automotive assemblies, and precision equipment. The 3/8"-16 UNC coarse thread with Class 3A fit ensures secure fastening in high-vibration environments, preventing unintentional loosening that can lead to equipment downtime. The hex drive and compact socket head design facilitate installation in tight spaces, while the 170,000 psi tensile strength and Rockwell C37 hardness provide durability under extreme loads. Ideal for industrial applications requiring reliable, high-strength fasteners, this screw minimizes maintenance needs and enhances operational safety.
Specification Summary & Compliance
This socket head cap screw features a 3/8"-16 UNC coarse thread with Class 3A precision fit for accurate engagement. It is manufactured in accordance with ASME B18.3 specifications and complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring suitability for global industrial use without hazardous substances.
