S-90044A242 2-64 x 1" 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.
- Superior corrosion resistance from the black-oxide coating extends service life in harsh industrial environments.
- Precise Class 3A thread fit provides tight tolerances for secure, vibration-resistant assemblies with minimal backlash.
- Fine 2-64 UNF threads offer improved adjustment control and better load distribution compared to coarse threads.
- High hardness (Rockwell C37) enhances wear resistance, maintaining thread integrity through repeated use.
- Hex socket drive (5/64") allows for high-torque installation in confined spaces with standard tools.
- Partially threaded design combines strong grip in threaded sections with smooth shank for precise clamping applications.
Professional Applications & Engineering Value
This black-oxide alloy steel socket head cap screw delivers critical performance advantages for precision assembly applications where space constraints and reliability are paramount. The fine 2-64 UNF threads with Class 3A fit provide exceptional vibration resistance in machinery, electronic enclosures, and automotive components, preventing loosening under dynamic loads. The partially threaded configuration ensures optimal clamp load distribution while the hex socket drive enables high torque application in confined spaces. With 170,000 psi tensile strength and Rockwell C37 hardness, these screws maintain structural integrity in high-stress applications while the black-oxide surface treatment provides durable corrosion protection without dimensional interference.
Specification Summary & Compliance
Manufactured to ASTM A574 specifications with Class 3A thread fit precision and UNF fine thread spacing. Features include: 2-64 thread size, 1" overall length, 5/64" hex drive, 5/8" minimum thread length, and right-hand thread direction. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards for industrial use.
