S-92965A546 1/4"-20 x 1 1/2" 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 tensile strength of 120,000 psi ensures reliable performance in high-stress industrial applications
- Superior corrosion resistance through black oxide finish extends service life in demanding environments
- Precision Class 2A thread fit provides consistent engagement and reduces assembly issues
- Grade 5 steel construction with Rockwell C25 hardness delivers optimal strength-to-weight ratio
- UNC coarse threading enables faster installation and reduced cross-threading risks
- External hex drive design allows for high torque application with standard tools
- Industry compliance with ASME B18.2.1 and RoHS 3 ensures quality and environmental safety
Professional Applications & Engineering Value
These Grade 5 hex head screws are engineered to address critical fastening challenges in industrial settings where vibration resistance and structural integrity are paramount. The black oxide finish provides essential corrosion protection without compromising dimensional accuracy, making them ideal for machinery assembly, structural frameworks, and heavy equipment manufacturing. The partially threaded design with UNC coarse threading ensures secure clamping force distribution while the external hex drive facilitates efficient installation in confined spaces. These 1/4"-20 screws deliver reliable performance in automotive, construction, and manufacturing applications where 120,000 psi tensile strength and consistent thread engagement are essential for long-term operational safety.
Specification Summary & Compliance
This 1/4"-20 hex head screw features precise Class 2A thread fit with UNC coarse threading and partial threading up to 3/4" minimum thread length. Manufactured from Grade 5 steel with Rockwell C25 hardness, it meets ASME B18.2.1 specifications (SAE J429) and maintains compliance with RoHS 3 (2015/863/EU) environmental standards. The fastener delivers consistent dimensional accuracy with 1 1/2" overall length, 7/16" head width, and right-hand thread direction for standardized industrial applications.
