S-92620A955 1"-8 x 2 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 capacity with 150,000 psi tensile strength and Rockwell C33 hardness for reliable performance in high-stress applications.
- Superior corrosion resistance provided by zinc yellow-chromate plating, extending service life in harsh or outdoor environments.
- Easy installation and removal with a standard 1 1/2" external hex head, allowing for high torque application using common tools.
- Secure and consistent fastening due to fully threaded UNC coarse design and Class 2A fit, minimizing loosening under vibration.
- Heavy-duty construction compatibility from the 2 1/2" length and Grade 8 classification, ideal for structural and machinery assemblies.
- Regulatory peace of mind with compliance to ASME B18.2.1, SAE J429, RoHS 3, and REACH, ensuring safety and environmental standards are met.
Professional Applications & Engineering Value
Engineered for demanding industrial settings, this Grade 8 hex head screw delivers critical reliability where failure is not an option. The steel material and fully threaded UNC coarse design ensure maximum grip and resistance to vibrational loosening in heavy machinery, construction frameworks, and automotive assemblies. The zinc yellow-chromate plating offers a robust barrier against rust and corrosion, significantly reducing maintenance needs in exposed or humid conditions. With a 1"-8 thread size and external hex drive, it supports quick, high-torque installations, streamlining assembly lines and reducing downtime. This fastener is a trusted solution for engineers seeking durability, compliance, and performance in critical industrial screws and construction fasteners.
Specification Summary & Compliance
This product adheres to precise Class 2A thread fit and UNC coarse threading standards, ensuring dimensional accuracy and interchangeability. It meets ASME B18.2.1 and SAE J429 specifications for consistent quality and performance. Additionally, it is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its safety for use in regulated industries and environments.
