S-90044A354 1/4"-28 x 2" 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.
- Class 3A fine thread fit provides superior precision and vibration resistance, maintaining secure connections in dynamic environments.
- Black-oxide coating on alloy steel offers enhanced corrosion resistance and durability, extending service life in harsh industrial conditions.
- Rockwell C37 hardness delivers excellent wear resistance, minimizing deformation under heavy loads and repeated use.
- 3/16" hex drive design allows for easy installation and removal with standard tools, improving assembly efficiency.
- Fully threaded right-hand configuration ensures consistent engagement and holding power across the entire length for versatile applications.
- Compliance with ASTM A574, RoHS 3, and REACH guarantees adherence to industry standards and environmental regulations, supporting safe and sustainable operations.
Professional Applications & Engineering Value
This black-oxide alloy steel socket head cap screw is engineered to address critical challenges in demanding industrial settings, such as machinery assembly, automotive systems, and heavy equipment. The UNRF Class 3A fine thread design enhances grip and resistance to loosening under vibration, a common issue in dynamic applications. With a high tensile strength of 170,000 psi and Rockwell C37 hardness, it withstands extreme mechanical stresses without compromising integrity. The fully threaded right-hand configuration ensures uniform load distribution, while the 3/16" hex drive facilitates quick and secure fastening. Ideal for precision engineering, these screws provide reliable performance in environments where durability and compliance with standards like ASTM A574 are essential.
Specification Summary & Compliance
This product features precise Class 3A thread fit with 1/4"-28 UNRF fine threads, ensuring tight tolerances and consistent performance. It meets ASTM A574 specifications for high-strength alloy steel fasteners and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, supporting environmental safety and industrial reliability.
