S-90283A537 1/4"-20 x 1/2" ASME B18.6.3 Steel Pan Head Slotted Screws
Steel Pan Head Slotted 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 that extends service life in demanding industrial environments
- Excellent tensile strength of 60,000 psi ensures reliable performance under high-stress applications
- Precision UNC coarse threading with Class 2A fit provides quick assembly and secure fastening
- Durable Rockwell B60 hardness maintains structural integrity and prevents stripping during installation
- Fully threaded design offers maximum grip length and consistent holding power
- Standard slotted drive enables compatibility with common tools for easy installation and maintenance
- Comprehensive compliance with ASME B18.6.3 ensures dimensional accuracy and interchangeability
Professional Applications & Engineering Value
This zinc-plated steel pan head screw delivers exceptional engineering value for industrial applications where vibration resistance and long-term reliability are critical. The combination of UNC coarse threading and Class 2A thread fit ensures rapid installation while maintaining precise alignment in machinery, equipment assemblies, and structural frameworks. The rounded pan head profile with slotted drive provides a low-profile fastening solution that distributes clamping force evenly, preventing surface damage while accommodating standard screwdrivers. With 60,000 psi tensile strength and Rockwell B60 hardness, these screws withstand dynamic loads and repeated stress cycles in manufacturing, automotive, and construction applications, reducing maintenance frequency and downtime.
Specification Summary & Compliance
This 1/4"-20 x 1/2" pan head screw features precise UNC coarse threads with Class 2A thread fit tolerance for consistent engagement. Manufactured to ASME B18.6.3 specifications for dimensional accuracy and performance reliability. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industrial sectors.
