S-90665A186 3/8"-16 x 3/4" 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 in high-stress industrial applications, reducing the risk of fastener failure.
- Zinc-plated alloy steel construction provides superior corrosion resistance, extending service life in harsh environments and minimizing maintenance needs.
- Class 3A thread fit offers precise, tight tolerances for secure fastening, preventing loosening under vibration and improving assembly integrity.
- Low-profile socket head design with a 3/16" hex drive allows for easy installation in confined spaces, enhancing accessibility and efficiency.
- Coarse UNC threads enable quick assembly and disassembly, saving time in production and maintenance workflows.
- High hardness rating (Rockwell C39) increases wear resistance, ensuring durability and long-term performance in demanding applications.
- Full threading along the 3/4" length provides consistent grip and load distribution, optimizing clamping force and joint stability.
Professional Applications & Engineering Value
This 3/8"-16 UNC Socket Head Cap Screw is engineered to address common industrial challenges, such as vibration-induced loosening and corrosion in machinery assemblies. The zinc-plated alloy steel material combats environmental wear, while the low-profile socket head and hex drive facilitate installation in tight spaces, reducing assembly time. With a coarse thread and Class 3A fit, it ensures secure fastening in high-vibration environments like automotive and aerospace systems, preventing downtime. Ideal for heavy-duty applications, it supports robust performance in construction equipment and industrial machinery, where high tensile strength and compliance with standards are critical for safety and efficiency.
Specification Summary & Compliance
This product adheres to precise dimensional standards, including a Class 3A thread fit for tight tolerances and UNC coarse threads with a size of 3/8"-16. It meets ASTM A574 specifications for high-strength socket head cap screws and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material reliability in industrial use.
