S-90128A980 1"-8 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 in high-stress industrial applications, reducing the risk of fastener failure.
- Superior corrosion resistance with zinc-plated alloy steel construction extends service life in harsh environments, minimizing maintenance needs.
- Precise Class 3A thread fit provides secure, vibration-resistant connections for improved assembly integrity and safety.
- Coarse UNC threads enable faster installation and stronger holding power in various materials, boosting efficiency on the production line.
- Fully threaded design offers consistent clamping force along the entire 3" length, ideal for adjustable or deep-set applications.
- 3/4" hex drive and standard socket head allow for easy torque application with common tools, speeding up assembly and disassembly processes.
- High Rockwell C37 hardness resists wear and deformation, ensuring long-term durability under repetitive loads.
Professional Applications & Engineering Value
This socket head cap screw is engineered to address critical challenges in heavy machinery, automotive, and construction sectors, where vibration loosening and material fatigue are common concerns. The zinc-plated alloy steel provides a robust barrier against rust and chemical exposure, making it suitable for outdoor or humid conditions. With UNC coarse threads and Class 3A fit, it ensures rapid, secure fastening in metals and composites, reducing assembly time while maintaining joint integrity. The fully threaded rod design allows for versatile positioning and uniform stress distribution, preventing localized failures. Ideal for high-torque applications, the 3/4" hex drive facilitates easy access in confined spaces, enhancing productivity in maintenance and manufacturing workflows.
Specification Summary & Compliance
This fastener features a 1"-8 UNC thread with Class 3A dimensional accuracy for precise fit, and is manufactured in compliance with ASTM A574 specifications. It meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, ensuring safety and regulatory adherence for global industrial use.
