S-90044A220 2"-4 1/2 x 10" 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 in high-stress industrial applications, reducing failure risks.
- Black-oxide coating on alloy steel provides superior corrosion resistance and durability in harsh environments.
- Rockwell C37 hardness offers excellent wear resistance, extending the screw's service life under repetitive loads.
- 1 1/2" hex drive and standard socket head allow for secure, high-torque installation with common tools, minimizing slippage.
- UNC coarse threads with Class 2A fit enable quick assembly and reliable grip in various materials, saving installation time.
- Partially threaded design provides precise clamping force control, ideal for applications requiring specific unthreaded shank sections.
- Compliance with ASTM A574, RoHS 3, and REACH ensures material consistency and environmental safety for global supply chains.
Professional Applications & Engineering Value
These Black-Oxide Alloy Steel Socket Head Cap Screws are engineered to address critical challenges in heavy machinery, construction, and automotive assemblies. The UNC coarse thread design resists vibration loosening, while the high tensile strength and Rockwell C37 hardness prevent stripping and deformation under extreme loads. The partially threaded rod type allows for precise joint positioning, reducing stress concentration. Ideal for securing large structural components, these screws offer reliable fastening in demanding environments, supported by ASTM A574 specifications for consistent quality and performance.
Specification Summary & Compliance
This product adheres to Class 2A thread fit for standard clearance and easy assembly, with UNC coarse threads spanning sizes from 2" to 4 1/2". Manufactured per ASTM A574 for high-strength socket head cap screws, it meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring no restricted substances are used. The specifications guarantee dimensional accuracy and material integrity for industrial use.
