S-90044A265 12-24 x 3" 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.
- Superior corrosion resistance provided by the black-oxide finish on alloy steel, extending service life in demanding industrial environments.
- Precise Class 3A thread fit guarantees secure, vibration-resistant assemblies with minimal risk of loosening.
- High hardness rating of Rockwell C37 offers excellent wear resistance, maintaining thread integrity through repeated use.
- Hex socket drive design allows for high torque application and easy installation in confined spaces.
- Compliance with ASTM A574, RoHS 3, and REACH ensures material quality and environmental safety for global supply chains.
- Partially threaded shank provides optimal clamping force where full threading is not required, enhancing design flexibility.
Professional Applications & Engineering Value
Engineered for high-strength industrial applications, these 12-24 UNC thread Socket Head Cap Screws address critical challenges in machinery assembly, automotive components, and heavy equipment. The black-oxide alloy steel construction combats rust and wear, while the coarse thread design enables quick assembly and superior holding power in materials like cast iron or steel. The hex drive and standard socket head profile facilitate secure tool engagement, reducing installation time and preventing strip-out. Ideal for applications requiring 170,000 psi tensile strength and Class 3A thread precision, these screws deliver consistent performance in vibration-prone environments, ensuring long-term reliability and reduced maintenance costs.
Specification Summary & Compliance
This screw features a 12-24 UNC coarse thread with Class 3A fit for tight tolerance assemblies, a 3" length with 1" minimum thread length, and partially threaded design. It meets ASTM A574 specifications for high-strength socket head cap screws and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring adherence to international safety and environmental standards.
