S-99468A184 1/4"-20 x 3/8" 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 aluminum construction provides excellent durability with 50,000 psi tensile strength while maintaining lightweight properties
- Precision Class 2A thread fit ensures reliable engagement and consistent performance in demanding applications
- 82° undercut flat head design offers superior flush mounting and reduced protrusion in countersunk applications
- Fully threaded coarse UNC pattern delivers maximum holding power and faster installation in various materials
- Rockwell B55 hardness rating maintains thread integrity and resists deformation under load
- Comprehensive compliance with ASME B18.6.3 standards ensures engineering reliability and interchangeability
- Environmental regulation compliance with RoHS 3 and REACH supports sustainable manufacturing practices
Professional Applications & Engineering Value
These 2024 aluminum flat head screws with 1/4"-20 UNC coarse threading provide exceptional value in applications where weight reduction, corrosion resistance, and reliable fastening are critical. The undercut flat head profile with 82° countersink angle ensures clean, flush installations in aerospace components, electronic enclosures, and precision machinery. The fully threaded design combined with Class 2A thread fit guarantees consistent clamping force across the entire fastener length, preventing loosening in high-vibration environments. Manufactured from 2024 aluminum alloy, these slotted drive screws offer an optimal balance of strength-to-weight ratio, making them ideal for applications where every ounce matters without compromising structural integrity.
Specification Summary & Compliance
This flat head slotted screw features precise Class 2A thread fit per UNC standards with 1/4"-20 coarse threading and right-hand orientation. The fastener maintains dimensional accuracy per ASME B18.6.3 specifications with a 0.25" thread diameter and 3/8" length. Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations ensures environmental safety and restricted substance management throughout the manufacturing process.
