S-93143A552 1/4"-20 x 2 1/2" ASME B18.6.3 Aluminum Round Head Slotted Screws
Aluminum 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 strength-to-weight ratio with 30,000 psi tensile strength for reliable performance in demanding applications
- Excellent corrosion resistance from 2024 aluminum alloy for extended service life in various environments
- Precision threading with UNC coarse 1/4"-20 pattern ensures quick installation and secure fastening
- Optimized load distribution through rounded head design reduces surface stress and material damage
- Versatile installation options with slotted drive compatibility for standard screwdrivers
- Controlled thread engagement through partial threading prevents over-tightening and thread damage
- Consistent dimensional accuracy with Class 2A thread fit for reliable mating with standard nuts
Professional Applications & Engineering Value
This 2024 aluminum rounded head screw delivers exceptional engineering value for industrial applications where weight reduction and corrosion resistance are critical. The UNC coarse threading (1/4"-20) provides rapid assembly in materials where fine threads might strip, while the partially threaded design ensures precise clamping force control. The slotted drive style offers compatibility with standard tools, making these industrial screws ideal for aerospace components, electronic enclosures, and machinery where aluminum fasteners prevent galvanic corrosion. The rounded head profile distributes load evenly, preventing surface damage to sensitive materials while maintaining a clean, professional appearance in visible applications.
Specification Summary & Compliance
Manufactured to exacting standards with Class 2A thread fit tolerance for consistent performance. This 1/4"-20 UNC coarse thread screw meets ASME B18.6.3 specifications for dimensional accuracy and mechanical properties. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industrial sectors. With Rockwell B40 hardness and precise dimensional control, these screws deliver reliable performance in professional applications requiring aluminum fasteners.
