S-92865A173 1/4"-20 x 9/16" ASME B18.2.1, SAE J429 Medium-Strength Grade 5 Steel Hex Head Screws
Medium-Strength Grade 5 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 120,000 psi tensile strength for reliable performance in demanding applications
- Superior corrosion resistance through zinc plating, extending service life in industrial environments
- Precision thread engagement with Class 2A UNC coarse threads ensuring secure fastening and vibration resistance
- Optimized torque transmission through external hex drive design for efficient installation with standard tools
- Consistent mechanical properties with Rockwell C25 hardness providing durability and wear resistance
- Full-threaded design offering maximum grip length and uniform stress distribution
- Industry-standard compliance meeting ASME B18.2.1 specifications for guaranteed interchangeability
Professional Applications & Engineering Value
This Grade 5 hex head screw delivers exceptional engineering value for industrial applications where high tensile strength and reliable performance are critical. The zinc plated steel construction provides superior corrosion protection in demanding environments, while the UNC coarse threads and Class 2A thread fit ensure rapid assembly and secure fastening in machinery, equipment manufacturing, and structural applications. The external hex drive design allows for high-torque installation, making these fully threaded fasteners ideal for applications requiring maximum clamping force and vibration resistance. Engineered to meet rigorous industrial standards, these screws provide dependable performance in automotive, construction, and heavy equipment applications where failure is not an option.
Specification Summary & Compliance
This fastener features precision 1/4"-20 UNC coarse threads with Class 2A thread fit for optimal engagement and meets ASME B18.2.1 dimensional standards. Manufactured in compliance with SAE J429 Grade 5 mechanical properties, the screw delivers 120,000 psi tensile strength and Rockwell C25 hardness. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industrial sectors.
