S-90283A539 1/4"-20 x 5/8" 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 for extended service life in demanding environments
- High tensile strength of 60,000 psi ensures reliable fastening under substantial mechanical loads
- Rockwell B60 hardness provides excellent durability and resistance to wear during installation and use
- Fully threaded UNC coarse design enables faster installation and superior grip in various materials
- Class 2A thread fit offers optimal clearance for easy assembly while maintaining secure connections
- Slotted pan head design allows for straightforward installation with standard screwdrivers
- Comprehensive compliance with ASME, RoHS 3, and REACH ensures regulatory adherence for global applications
Professional Applications & Engineering Value
Engineered for industrial reliability, these zinc-plated steel slotted pan head screws address critical fastening challenges in machinery assembly, electrical enclosures, and structural applications. The combination of 60,000 psi tensile strength and Rockwell B60 hardness ensures dependable performance under vibration and load stress, while the zinc plating provides essential corrosion protection in humid or chemically aggressive environments. The UNC coarse thread design facilitates quick installation in both metal and composite materials, reducing assembly time without compromising joint integrity. These fully threaded screws with Class 2A fit deliver consistent clamping force across the entire fastener length, making them ideal for applications requiring uniform pressure distribution and vibration resistance.
Specification Summary & Compliance
This 1/4"-20 x 5/8" slotted pan head screw features precision UNC coarse threads with Class 2A thread fit tolerance for reliable assembly performance. Manufactured in compliance with ASME B18.6.3 specifications for dimensional accuracy and mechanical properties. The product meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulatory requirements, ensuring environmental compliance for industrial and commercial applications worldwide.
