S-97124A649 1/4"-20 x 1 1/2" ASME B18.6.3 Aluminum Phillips Flat Head Screws
Aluminum Phillips 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, offering reliable performance while reducing component weight in assemblies.
- Superior tensile strength of 50,000 psi ensures dependable load-bearing capacity for demanding industrial applications.
- Rockwell B55 hardness provides excellent resistance to wear and deformation under stress.
- Fully threaded UNC coarse design delivers faster installation and enhanced grip in various materials.
- Standard 82° countersink angle allows for flush mounting, creating smooth, professional-looking surfaces.
- Phillips No. 3 drive enables efficient torque application with common tools, reducing installation time.
- Class 2A thread fit ensures consistent, reliable engagement with standard nuts and tapped holes.
Professional Applications & Engineering Value
These 2024 aluminum flat head screws are engineered to address critical needs in precision assemblies where weight reduction, corrosion resistance, and structural integrity are paramount. The fully threaded 1/4"-20 UNC coarse thread provides maximum holding power in softer materials and plastics, while the flat head with 82° countersink ensures a seamless finish in countersunk holes—ideal for aerospace components, electronic enclosures, and machinery where protruding fasteners are unacceptable. Manufactured from high-grade 2024 aluminum, these screws resist stress corrosion cracking and maintain 50,000 psi tensile strength, making them suitable for applications requiring repeated disassembly without thread degradation. The Phillips drive offers broad compatibility with standard industrial tools, streamlining maintenance and production workflows.
Specification Summary & Compliance
This screw features precise Class 2A thread fit per UNC standards, ensuring consistent dimensional accuracy and reliable mating with corresponding components. Manufacturing and dimensional compliance adhere to ASME B18.6.3 specifications for machine screws. The product is verified to be RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, confirming the absence of restricted hazardous substances and supporting use in regulated markets.
