S-90044A236 2 1/2"-8 x 6" 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 applications, reducing the risk of fastener failure.
- Superior corrosion resistance from the Black-Oxide finish on Alloy Steel prolongs service life in harsh industrial environments.
- Precise thread engagement with 2 1/2"-8 UN fine thread and Class 2A fit provides secure, vibration-resistant connections.
- Full-threaded design allows for maximum adjustability and uniform load distribution along the entire 6" length.
- High hardness rating (Rockwell C37) enhances wear resistance and durability under repetitive loads.
- Heavy-duty hex drive (1 3/4") enables high-torque installation with standard tools, speeding up assembly processes.
- Compliance with ASTM A574, RoHS 3, and REACH ensures material consistency and environmental safety for global supply chains.
Professional Applications & Engineering Value
This Socket Head Cap Screw is engineered for demanding applications where high tensile strength and corrosion resistance are critical. The Black-Oxide Alloy Steel construction combats rust in moisture-prone settings, while the fully threaded 2 1/2"-8 UN fine thread design offers superior clamping force and vibration resistance in heavy machinery, construction equipment, and automotive assemblies. Its Class 2A thread fit ensures easy installation without sacrificing precision, reducing assembly time and maintenance costs. Ideal for industrial fastening in structural frames, presses, and mining equipment, this screw delivers long-term reliability under extreme mechanical stress.
Specification Summary & Compliance
This fastener features a 2 1/2"-8 UN fine thread with Class 2A tolerance for consistent fit and performance. It meets ASTM A574 specifications for high-strength socket head cap screws, ensuring material and dimensional integrity. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, supporting safe and sustainable manufacturing practices.
