S-90357A158 1/2"-13 x 1/2" 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 ensures reliable performance under high-stress conditions, reducing the risk of fastener failure.
- Class 3A thread fit provides superior precision and tighter tolerances for secure, vibration-resistant assemblies in critical applications.
- Black-oxide coating on alloy steel enhances corrosion resistance, extending service life in harsh industrial environments.
- Ultra-low socket head profile allows for installation in confined spaces while maintaining high torque capability with a 1/4" hex drive.
- Rockwell C32 hardness offers excellent wear resistance, maintaining thread integrity through repeated use.
- Fully threaded design enables consistent clamping force along the entire length, ideal for adjustable or deep-set applications.
- Compliance with RoHS 3 and REACH ensures environmental safety and regulatory acceptance for global supply chains.
Professional Applications & Engineering Value
Engineered for demanding industrial settings, this 1/2"-13 UNC Socket Head Cap Screw addresses common challenges like space constraints and vibration-induced loosening. The black-oxide alloy steel construction combats corrosion, making it suitable for machinery, automotive, and heavy equipment where exposure to moisture or chemicals occurs. Its ultra-low profile head and coarse UNC threads facilitate quick installation in tight areas, while the Class 3A thread fit ensures minimal backlash for precision assemblies. By delivering high tensile strength and durability, it reduces maintenance needs and enhances operational reliability in industrial fastening applications.
Specification Summary & Compliance
This fastener features a 1/2"-13 UNC coarse thread with Class 3A fit for precise engagement, and a length tolerance of -0.005" to 0.005" for consistent dimensions. It adheres to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring compliance with environmental and safety standards for industrial use.
