S-90283A554 1/4"-20 x 3" 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-plated steel construction, extending service life in harsh industrial environments
- High tensile strength of 60,000 psi ensures reliable performance under heavy loads and vibration
- Rockwell B60 hardness provides excellent durability and resistance to wear during installation and use
- Class 2A thread fit offers smooth assembly with standard nuts while maintaining secure fastening
- Fully threaded design allows for maximum grip length and adjustable positioning in applications
- ASME B18.6.3 compliance guarantees consistent quality and dimensional accuracy for industrial applications
- RoHS 3 & REACH compliance ensures environmental responsibility and global regulatory acceptance
Professional Applications & Engineering Value
This zinc-plated steel slotted pan head screw delivers exceptional value in demanding industrial applications where corrosion resistance and mechanical strength are critical. The 1/4"-20 UNC coarse thread configuration provides rapid installation and superior holding power in materials ranging from metal assemblies to structural components. With its fully threaded design and rounded pan head profile, this fastener distributes clamping force evenly while the slotted drive accommodates traditional installation tools. The combination of 60,000 psi tensile strength and Rockwell B60 hardness ensures these screws maintain integrity in high-stress environments, from machinery manufacturing to construction applications, while the zinc plating provides essential protection against environmental degradation.
Specification Summary & Compliance
Manufactured to precise Class 2A thread fit tolerances with UNC coarse threading (1/4"-20) and right-hand thread direction. This 3" fully threaded pan head screw complies with ASME B18.6.3 manufacturing specifications and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental compliance standards, ensuring both dimensional accuracy and regulatory acceptance for global industrial applications.
