S-92620A546 1/4"-20 x 1 1/2" ASME B18.2.1, SAE J429 High-Strength Grade 8 Steel Hex Head Screws
High-Strength Grade 8 Steel Hex 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 load-bearing capability with 150,000 PSI tensile strength and Rockwell C33 hardness for reliable performance in high-stress applications.
- Superior corrosion resistance from zinc yellow-chromate plating, extending service life in harsh industrial environments.
- Secure and easy installation with external hex drive and fully threaded UNC coarse pattern, ensuring quick assembly and strong grip.
- Precision thread fit with Class 2A tolerance, providing consistent engagement and reducing the risk of cross-threading.
- High-strength Grade 8 rating for demanding applications, offering dependable fastening in heavy machinery and structural assemblies.
- Compliance with major standards including ASME B18.2.1 and SAE J429, ensuring quality and interoperability in professional settings.
- Environmental and safety adherence with RoHS 3 and REACH compliance, supporting sustainable and safe industrial practices.
Professional Applications & Engineering Value
This Grade 8 hex head screw is engineered to address critical challenges in heavy-duty industrial environments, where vibration, high loads, and corrosive conditions can compromise fastener integrity. Made from high-strength steel and featuring a zinc yellow-chromate plating, it provides robust protection against rust and wear, ideal for applications in construction, automotive, and machinery assembly. The UNC coarse thread and fully threaded design ensure rapid installation and superior holding power, reducing downtime and maintenance costs. With a right-hand thread and precise Class 2A fit, it delivers consistent performance in high-strength fastening scenarios, making it a reliable choice for engineers seeking durability and compliance with industry standards like ASME and SAE.
Specification Summary & Compliance
This screw adheres to Class 2A thread fit for precise dimensional accuracy and features UNC coarse threading with a size of 1/4"-20. It meets ASME B18.2.1 and SAE J429 specifications for manufacturing consistency and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material restrictions are upheld.
