S-92220A224 5/16"-18 x 1 1/4" ASTM A574 Alloy Steel Low-Profile Socket Head Screws
Alloy Steel 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 in demanding applications.
- Superior corrosion resistance from the black-oxide finish on alloy steel extends service life and maintains integrity in harsh industrial environments.
- Precise Class 3A thread fit provides tighter tolerances for secure, vibration-resistant assemblies, minimizing loosening over time.
- Low-profile socket head design with 5/32" hex drive allows for easy installation in confined spaces while maintaining a sleek, unobtrusive appearance.
- Fully threaded shank ensures consistent clamping force along the entire 1-1/4" length, ideal for uniform load distribution.
- High hardness rating (Rockwell C39) enhances wear resistance and durability, supporting long-term reliability in repetitive use scenarios.
- Compliance with ASTM A574, RoHS 3, and REACH guarantees adherence to industry standards for safety, environmental responsibility, and material quality.
Professional Applications & Engineering Value
Engineered for robust performance, these Black-Oxide Alloy Steel Socket Head Cap Screws address common industrial challenges such as vibration-induced loosening and corrosion in machinery assemblies. The 5/16"-18 UNC coarse thread and Class 3A fit provide superior grip in metals and plastics, reducing maintenance needs in automotive, aerospace, and heavy equipment applications. The low-profile head and 5/32" hex drive facilitate quick installation with standard tools, saving time in tight spaces while the 140,000 psi tensile strength ensures structural integrity under dynamic loads. Ideal for securing critical components where reliability and compliance with ASTM A574 are paramount.
Specification Summary & Compliance
This screw features a 5/16"-18 UNC coarse thread with Class 3A precision tolerance for accurate fit, and is manufactured in accordance with ASTM A574 specifications for high-strength alloy steel fasteners. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material traceability in industrial supply chains.
