S-99468A205 1/4"-20 x 1 1/2" ASME B18.6.3 Aluminum Slotted Flat Head Screws
Aluminum 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
- High strength-to-weight ratio from 2024 Aluminum construction provides reliable fastening while reducing overall assembly weight
- Exceptional tensile performance with 50,000 psi rating ensures secure connections in demanding applications
- Precision Class 2A thread fit guarantees smooth installation and consistent engagement with mating components
- Optimized 82° countersink angle allows for flush mounting and clean surface finishes
- Full threading design enables maximum grip length and versatile positioning along the entire shank
- Durable Rockwell B55 hardness maintains thread integrity and resists deformation during installation
- Comprehensive compliance with ASME B18.6.3, RoHS 3, and REACH ensures quality and environmental responsibility
Professional Applications & Engineering Value
These 1/4-20 UNC flat head screws manufactured from 2024 Aluminum deliver exceptional performance in weight-sensitive industrial applications where corrosion resistance and mechanical strength are critical. The fully threaded design with coarse thread spacing provides superior holding power in softer materials and allows for adjustable positioning without compromising structural integrity. The standard 82° countersink angle ensures perfect flush mounting in precision assemblies, eliminating protrusions that could interfere with moving components or aesthetic requirements. The combination of 50,000 psi tensile strength and Rockwell B55 hardness makes these slotted drive screws ideal for aerospace components, electronic enclosures, and transportation equipment where vibration resistance and reliable fastening are essential.
Specification Summary & Compliance
These flat head screws feature precise Class 2A thread fit according to UNC standards with 1/4"-20 coarse thread spacing and right-hand threading. Manufacturing complies with ASME B18.6.3 specifications for dimensional accuracy and performance. The products are fully RoHS 3 (2015/863/EU) compliant and meet REACH (EC 1907/2006) requirements, ensuring environmental responsibility and regulatory adherence for global industrial applications.
