S-90044A285 1-64 x 5/8" ASTM A574 Alloy Steel Socket Head Screws
Alloy Steel 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 170,000 psi ensures reliable performance under high-stress conditions, reducing the risk of fastener failure in demanding applications.
- Superior corrosion resistance provided by the black-oxide finish on alloy steel, extending service life in harsh industrial environments.
- Precise Class 3A thread fit guarantees tight, secure connections with minimal backlash, enhancing assembly accuracy and vibration resistance.
- High hardness rating (Rockwell C37) offers excellent wear resistance, maintaining thread integrity through repeated installations and removals.
- Standard hex socket drive allows for easy installation with common tools, streamlining maintenance and reducing assembly time.
- Full threading along the 5/8" length provides maximum grip and adjustability, ideal for applications requiring deep engagement.
- Compliance with ASTM A574, RoHS 3, and REACH ensures material consistency and environmental safety, meeting global regulatory standards for industrial use.
Professional Applications & Engineering Value
This black-oxide alloy steel socket head cap screw is engineered to address critical challenges in precision machinery, automotive assemblies, and heavy-duty equipment. The 1-64 UNC coarse thread with Class 3A fit delivers superior clamping force and vibration resistance, preventing loosening in dynamic environments. Its high tensile strength and Rockwell C37 hardness ensure durability against mechanical stress and wear, while the black-oxide surface treatment provides reliable corrosion protection without compromising dimensional stability. Ideal for applications requiring fully threaded fasteners with consistent performance, it reduces maintenance cycles and enhances operational reliability in industrial screw assemblies.
Specification Summary & Compliance
This socket head cap screw features a 1-64 UNC coarse thread with Class 3A thread fit for precise engagement, a length of 5/8", and a 1/16" hex drive. Manufactured in compliance with ASTM A574 specifications for alloy steel socket head cap screws, it meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe and consistent quality for industrial use.
