S-90665A162 1/4"-20 x 1 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 in demanding applications.
- Superior corrosion resistance from the zinc-plated alloy steel construction extends service life and maintains integrity in various industrial environments.
- Precise Class 3A thread fit provides tighter tolerances for secure, vibration-resistant assemblies, minimizing loosening over time.
- Low-profile socket head design allows for installation in confined spaces while offering high torque capability with a standard hex drive.
- Fully threaded body ensures consistent engagement along the entire length, providing uniform clamping force and versatility in adjustment.
- Compliance with ASTM A574 guarantees consistent quality and performance, meeting rigorous industrial standards for socket head cap screws.
- RoHS 3 and REACH compliance ensures environmental safety and regulatory adherence for global supply chain integration.
Professional Applications & Engineering Value
These 1/4"-20 UNC socket head cap screws are engineered to address critical challenges in industrial assembly, such as vibration-induced loosening and space constraints. The zinc-plated alloy steel material offers excellent durability against corrosion, while the Rockwell C39 hardness provides resistance to wear and deformation. Featuring coarse UNC threads and a Class 3A fit, these screws deliver reliable fastening in machinery, automotive, and construction applications where high tensile strength and precise thread engagement are essential. The low-profile socket head with a hex drive enables efficient installation in tight areas, reducing assembly time and improving maintenance accessibility.
Specification Summary & Compliance
This product adheres to precise dimensional standards, including UNC coarse threads with a Class 3A thread fit for superior accuracy. Manufactured in compliance with ASTM A574 specifications, it ensures consistent performance in high-strength applications. Additionally, it meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming environmental and safety compliance for industrial use.
