S-90276A131 5-40 x 3/4" ASME B18.6.3 Steel Round Head Slotted Screws
Steel Round 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 demanding environments
- High tensile strength of 60,000 psi ensures reliable fastening under substantial mechanical loads
- Rockwell B69 hardness provides excellent durability and resistance to wear and deformation
- Class 2A thread fit offers consistent, reliable engagement with standard UNC coarse threaded components
- Fully threaded design maximizes grip and load distribution across the entire fastener length
- Rounded head with slotted drive enables easy installation and removal with standard tools
- Compliance with ASME B18.6.3 guarantees dimensional accuracy and interchangeability in industrial assemblies
Professional Applications & Engineering Value
These 5-40 UNC zinc-plated steel rounded head slotted screws are engineered to address common industrial fastening challenges where corrosion resistance, high tensile strength, and dimensional precision are critical. The zinc plating provides a protective barrier against oxidation and chemical exposure, making them ideal for outdoor equipment, machinery, and electronic enclosures. The coarse UNC thread and Class 2A fit ensure quick assembly and reliable performance in vibration-prone applications, while the fully threaded design offers superior holding power in materials where maximum thread engagement is required. These screws deliver consistent performance in automotive, manufacturing, and construction applications where ASME B18.6.3 compliance is mandatory for quality assurance.
Specification Summary & Compliance
This product features precision 5-40 UNC coarse threads with Class 2A thread fit tolerance, ensuring reliable mating with standard components. Manufacturing conforms to ASME B18.6.3 specifications for dimensional accuracy and performance. The screws are fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, containing no restricted substances above threshold limits.
