S-90128A848 1/2"-20 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 – Withstands up to 170,000 psi for reliable performance in high-stress applications.
- Superior Corrosion Resistance – Zinc-plated alloy steel construction ensures durability in harsh industrial environments.
- Precision Thread Fit – Class 3A fine UNF threads provide secure, vibration-resistant connections with minimal play.
- High Hardness Rating – Rockwell C37 hardness maintains structural integrity under heavy loads and repeated use.
- Secure Hex Drive Engagement – 3/8" hex drive allows for high torque application without slippage or stripping.
- Full Thread Coverage – Fully threaded 2" length offers maximum grip and adjustability in assembled components.
- Regulatory Compliance – Meets ASTM A574, RoHS 3, and REACH standards for safe, quality-assured industrial use.
Professional Applications & Engineering Value
This 1/2"-20 UNF Socket Head Cap Screw delivers critical reliability in demanding assemblies where vibration resistance and precise alignment are paramount. The zinc-plated alloy steel provides excellent corrosion protection, extending service life in machinery, automotive, and heavy equipment applications. Its Class 3A fine thread fit ensures minimal backlash and superior clamping force, reducing maintenance frequency in high-cycle operations. The 3/8" hex drive and standard socket head profile facilitate easy installation in confined spaces, while the fully threaded design allows for uniform stress distribution. Engineered to ASTM A574 specifications, this fastener is ideal for precision engineering projects requiring consistent, high-strength performance.
Specification Summary & Compliance
This socket head cap screw features a 1/2"-20 UNF fine thread with Class 3A tolerance for precise fit. It is manufactured from zinc-plated alloy steel per ASTM A574 standards, ensuring dimensional accuracy and mechanical properties. Compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) for environmental safety. The screw is fully threaded, right-hand direction, with a 0.5" thread diameter and 2" length, suitable for high-tensile applications requiring strict adherence to industrial specifications.
