S-90275A310 3/8"-16 x 5/8" ASME B18.6.3 Steel Slotted Flat Head Screws
Steel Slotted Flat 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
- 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 stress
- Rockwell B70 hardness provides excellent durability and resistance to wear during installation and use
- Class 2A thread fit offers optimal assembly clearance while maintaining secure connections
- 82° countersink angle enables flush mounting for clean, professional finishes in various applications
- Fully threaded design maximizes grip length and load distribution across the entire fastener
- Slotted drive compatibility allows for quick installation with standard tools while maintaining cost-effectiveness
Professional Applications & Engineering Value
These 3/8"-16 UNC flat head screws deliver exceptional engineering value through their zinc-plated steel construction and precision coarse threading. The combination of 60,000 psi tensile strength and Rockwell B70 hardness addresses common industrial challenges including vibration resistance, material fatigue, and long-term structural integrity. The 82° countersink angle and flat head profile create seamless surface finishes in machinery, equipment assembly, and structural frameworks where protrusion-free fastening is critical. The fully threaded design ensures maximum engagement in both thick and thin materials, providing versatile solutions across manufacturing, construction, and maintenance applications where reliable, high-strength fastening is paramount.
Specification Summary & Compliance
This flat head screw features 3/8"-16 UNC coarse threading with Class 2A thread fit tolerance for precise assembly. Manufacturing complies with ASME B18.6.3 specifications ensuring dimensional accuracy and performance reliability. The product meets RoHS 3 (2015/863/EU) compliance for hazardous substance restrictions and REACH (EC 1907/2006) standards for chemical safety, making it suitable for regulated industrial markets and international supply chains.
