S-90665A112 8-32 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.
- Superior corrosion resistance with zinc plating protects against rust and extends service life in harsh industrial environments.
- Precise Class 3A thread fit provides tighter tolerances for secure, vibration-resistant assemblies in critical applications.
- Low-profile socket head design allows for installation in confined spaces while maintaining high torque capability with a hex drive.
- High hardness (Rockwell C39) offers excellent wear resistance, maintaining thread integrity through repeated use.
- Coarse UNC threading enables faster installation and reduced cross-threading risks compared to fine threads.
- Full compliance with ASTM A574, RoHS 3, and REACH ensures material consistency and environmental safety for global supply chains.
Professional Applications & Engineering Value
This 8-32 UNC thread socket head cap screw is engineered to address common industrial fastening challenges, such as vibration loosening and corrosion-induced failure. The zinc-plated alloy steel construction provides a durable barrier against moisture and chemicals, making it ideal for machinery, automotive assemblies, and outdoor equipment. The low-profile head and hex drive design facilitate easy access in tight spaces, while the coarse thread spacing ensures quick, secure engagement in materials like steel and aluminum. With a Class 3A thread fit, it maintains precise alignment in high-precision applications, reducing assembly time and improving overall structural integrity. These features make it a reliable choice for engineers seeking long-term, maintenance-free fastening solutions.
Specification Summary & Compliance
This screw adheres to UNC thread standards with a Class 3A thread fit for superior dimensional accuracy. It meets ASTM A574 specifications for alloy steel socket head cap screws, ensuring consistent material properties and manufacturing quality. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its safety for use in regulated industries and global markets.
