S-90044A186 7/16"-20 x 3 1/4" 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 critical assemblies.
- Corrosion-resistant black-oxide finish on alloy steel enhances durability and longevity, even in demanding industrial environments.
- Precise Class 3A thread fit provides superior engagement and vibration resistance, minimizing loosening in fine-thread applications.
- Partially threaded design allows for secure clamping on specific sections, offering flexibility in assembly and reducing material stress.
- 3/8" hex drive socket head enables easy installation with standard tools, improving efficiency and reducing assembly time.
- Compliance with ASTM A574, RoHS 3, and REACH ensures material consistency, environmental safety, and global regulatory acceptance.
- Fine thread spacing (UNF) delivers better adjustment control and higher fatigue resistance compared to coarse threads.
Professional Applications & Engineering Value
Engineered for high-stress industrial applications, this 7/16"-20 UNF Socket Head Cap Screw addresses common challenges like vibration-induced loosening and corrosion in machinery, automotive, and heavy equipment assemblies. The black-oxide alloy steel construction, combined with a fine thread spacing and Class 3A thread fit, ensures tight, reliable fastening that withstands dynamic loads and harsh conditions. Its partially threaded rod design allows precise load distribution, reducing stress concentration points. Ideal for use in precision engineering projects, this fastener enhances assembly integrity, minimizes maintenance needs, and supports long-term operational reliability.
Specification Summary & Compliance
This product meets Class 3A thread fit tolerances for precise engagement, adhering to UNF fine thread standards. Manufacturing follows ASTM A574 specifications for material and performance consistency. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and suitability for global markets.
