S-92620A270 1 1/8"-12 x 2 1/4" 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
- Superior tensile strength of 150,000 PSI ensures reliable performance in high-stress applications, reducing the risk of fastener failure.
- Exceptional hardness with Rockwell C33 rating provides excellent wear resistance and durability under heavy loads.
- Corrosion-resistant zinc yellow-chromate plating extends service life by protecting against rust and environmental degradation.
- Full UNF fine threading offers enhanced grip and vibration resistance in precision assemblies.
- Class 2A thread fit guarantees consistent, easy installation with standard nuts and tapped holes.
- External hex drive design allows for high-torque application using common tools, speeding up assembly processes.
- Compliance with ASME, SAE, RoHS 3, and REACH ensures adherence to industry standards and environmental safety regulations.
Professional Applications & Engineering Value
Engineered for demanding environments, this Grade 8 hex head screw delivers robust performance in heavy machinery, construction equipment, and automotive systems where high tensile strength and vibration resistance are critical. The zinc yellow-chromate finish provides a durable barrier against moisture and chemicals, minimizing maintenance needs. With fully threaded UNF fine threads and Class 2A fit, it ensures secure fastening in high-precision applications, reducing loosening under dynamic loads. Ideal for industrial fastening that requires compliance with ASME B18.2.1 and SAE J429 specifications, this screw offers long-term reliability and engineering efficiency.
Specification Summary & Compliance
This product features precise Class 2A thread fit and UNF fine threading with a diameter of 1.125" and length of 2 1/4". It meets ASME B18.2.1 and SAE J429 standards for dimensional accuracy and performance. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material restrictions are upheld.
