S-91236A822 5/8"-11 x 8" ASME B18.2.1, ASTM A307 Low-Strength Steel Hex Head Screws
Low-Strength 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 tensile strength of 60,000 psi ensures reliable performance in demanding industrial applications, reducing the risk of fastener failure.
- Zinc plating finish provides excellent corrosion resistance, extending the service life of the fastener in harsh environments.
- Coarse UNC thread design with Class 2A fit allows for quick and easy installation, saving time and labor costs in assembly.
- Partial threading offers superior clamping force and vibration resistance, ideal for applications requiring secure joint integrity.
- External hex drive and hex head enable high-torque installation with standard tools, ensuring tight and consistent fastening.
- Rockwell B69 hardness provides excellent durability and wear resistance, maintaining performance under repeated stress.
- Compliance with ASME B18.2.1 and ASTM A307 guarantees consistent quality and interoperability in industrial systems.
Professional Applications & Engineering Value
This 5/8"-11 UNC hex head screw is engineered from zinc plated steel to address common industrial challenges such as corrosion, vibration loosening, and high-load demands. The coarse thread and partial threading design enhance grip and resistance to dynamic forces, making it ideal for heavy machinery, structural frameworks, and construction projects. Its external hex drive facilitates efficient installation in tight spaces, reducing assembly time while ensuring reliable performance in industrial applications. By combining robust tensile strength and standardized dimensions, this fastener minimizes maintenance needs and supports long-term operational safety.
Specification Summary & Compliance
This product features a Class 2A thread fit with UNC coarse threads, ensuring precise dimensional accuracy per ASME B18.2.1 standards. It is manufactured in compliance with ASTM A307 for material consistency and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, confirming its suitability for global industrial use without hazardous substances.
