S-91236A853 3/4"-10 x 4 1/2" 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
- Superior corrosion resistance with zinc plating, extending service life in demanding environments
- High tensile strength of 60,000 PSI ensures reliable performance under heavy loads and vibration
- Rockwell B69 hardness provides excellent durability and resistance to wear and deformation
- Coarse UNC threads enable faster installation and better performance in softer materials
- External hex drive design allows for high torque application with standard tools
- Class 2A thread fit ensures consistent, reliable engagement while maintaining easy assembly
- Partially threaded shank provides optimal grip length for secure fastening in various material thicknesses
Professional Applications & Engineering Value
This 3/4"-10 UNC hex head screw delivers exceptional engineering value for industrial applications where vibration resistance and structural integrity are critical. The high-strength steel construction with zinc plating addresses common corrosion challenges in manufacturing, construction, and heavy equipment applications. The coarse thread design provides superior holding power in wood, soft metals, and structural assemblies, while the external hex drive accommodates high-torque installation requirements. The partially threaded configuration ensures maximum clamping force where needed, making it ideal for machinery, structural steel connections, and industrial equipment requiring reliable fastening solutions that withstand dynamic loads and environmental exposure.
Specification Summary & Compliance
This hex head screw features precise Class 2A thread fit per UNC standards with 3/4"-10 coarse threading and 4 1/2" length. Manufactured to ASME B18.2.1 specifications with material compliance to ASTM A307. The product meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance requirements, ensuring environmental responsibility and regulatory adherence for global industrial applications.
