S-98427A400 1 1/8"-7 ASTM A563 Hex Nuts
Hex Nuts
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Basic Information
Dimension Parameters
Thread Parameters
Head Parameters
Material & Strength Parameters
Finish & Compliance Parameters
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Key Features & Benefits at a Glance
- Superior load distribution thanks to the extra wide hex profile, reducing stress concentration and preventing joint failure
- Exceptional strength and durability from ASTM Grade DH steel, ensuring reliable performance in demanding applications
- Fast and easy installation with coarse UNC threads and Class 2B fit, providing smooth engagement and reducing assembly time
- Enhanced corrosion resistance for long service life in harsh industrial environments
- Industry-standard compliance with ASTM A563 specifications, guaranteeing consistent quality and interchangeability
- Secure external hex drive for high-torque applications, allowing for use with standard tools
- Environmental responsibility with full RoHS 3 and REACH compliance, meeting modern regulatory standards
Professional Applications & Engineering Value
This heavy-duty hex nut is engineered for structural applications where maximum clamping force and vibration resistance are critical. The extra wide profile significantly increases the bearing surface area, distributing load more effectively and minimizing the risk of material deformation under high stress. Manufactured from ASTM Grade DH steel, it provides the tensile strength needed for heavy machinery, construction frameworks, and large-scale industrial equipment. The 1 1/8"-7 UNC coarse thread ensures rapid assembly and disassembly, while the Class 2B thread fit offers optimal clearance for reliable performance without binding. This combination of a robust external hex drive and superior material makes it an ideal choice for applications requiring repeated maintenance and high torque values.
Specification Summary & Compliance
This nut features a 1 1/8"-7 UNC coarse thread with a Class 2B thread fit for standard tolerance and easy assembly. It conforms to ASTM A563 manufacturing specifications and is classified as ASTM Grade DH for high-strength applications. Dimensions include a 1 13/16" width and 1 7/64" height. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets current environmental and safety standards for industrial use.
