S-90665A185 3/8"-16 x 1/2" ASTM A574 Alloy Steel Low-Profile Socket Head Screws
Alloy Steel Low-Profile 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 140,000 psi ensures reliable performance under high-stress conditions, reducing the risk of fastener failure.
- Zinc-plated alloy steel construction provides excellent corrosion resistance, extending service life in harsh industrial environments.
- Class 3A thread fit offers superior precision and tighter tolerances for secure, vibration-resistant assemblies.
- Low-profile socket head design allows for installation in confined spaces while maintaining high torque capability with a 3/16" hex drive.
- Fully threaded body ensures consistent clamping force along the entire 1/2" length for uniform load distribution.
- Rockwell C39 hardness delivers enhanced durability and wear resistance, minimizing deformation during repeated use.
- Compliance with RoHS 3 and REACH regulations guarantees environmental safety and meets global industrial standards.
Professional Applications & Engineering Value
These socket head cap screws are engineered to address critical challenges in demanding applications such as heavy machinery, automotive assemblies, and precision equipment. The zinc-plated alloy steel material combats corrosion, while the 3/8"-16 UNC coarse thread and Class 3A fit provide rapid installation and superior resistance to loosening under vibration. The low-profile head and hex drive design enable easy access in tight spaces, reducing assembly time and improving maintenance efficiency. Ideal for high-stress environments, these fasteners ensure long-term reliability and performance consistency, backed by ASTM A574 specifications for quality assurance.
Specification Summary & Compliance
This fastener features a 3/8"-16 UNC coarse thread with Class 3A fit for precise engagement, and is manufactured in compliance with ASTM A574 standards. It meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulatory requirements, ensuring environmental and safety adherence for industrial use.
