S-90357A113 2-56 x 3/8" Alloy Steel Ultra-Low-Profile Socket Head Screws
Alloy Steel Ultra-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 provides reliable performance in high-stress applications, reducing the risk of fastener failure
- Precision Class 3A thread fit ensures superior engagement and vibration resistance in demanding industrial environments
- Black-oxide coating on alloy steel offers enhanced corrosion resistance and durability for extended service life
- Ultra-low socket head profile enables installation in confined spaces while maintaining full hex drive functionality
- Rockwell C32 hardness rating delivers excellent wear resistance and maintains thread integrity under repeated use
- Coarse UNC thread spacing allows for quicker assembly and disassembly while maintaining secure fastening
- Full regulatory compliance with RoHS 3 and REACH ensures environmental responsibility and global market acceptance
Professional Applications & Engineering Value
Engineered for precision applications where space constraints and reliability are critical, these socket head cap screws combine the strength of black-oxide alloy steel with exacting Class 3A thread fit tolerances. The ultra-low profile head design solves clearance issues in compact assemblies while maintaining the torque capability of a standard hex drive. The coarse UNC thread form provides excellent engagement in various materials, reducing cross-threading risks during installation. With 140,000 psi tensile strength and controlled length tolerance of ±0.005", these fasteners deliver consistent performance in industrial equipment, precision machinery, and electronic enclosures where vibration resistance and dimensional accuracy are paramount.
Specification Summary & Compliance
This 2-56 UNC thread socket head cap screw features precision Class 3A thread fit per inch system standards with controlled length tolerance of -0.005" to 0.005". Manufactured from alloy steel with Rockwell C32 hardness and 140,000 psi tensile strength. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations for industrial applications worldwide.
