S-90279A294 12-24 x 3/4" ASME B18.6.3 Steel Round Head Phillips Screws
Steel Round Head Phillips 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 for extended service life in demanding environments
- Excellent thread engagement with Class 2A coarse UNC threads ensuring reliable fastening and vibration resistance
- High tensile strength rating of 60,000 psi provides dependable performance under substantial mechanical stress
- Optimized drive efficiency with Phillips No. 3 drive design for secure tool engagement and reduced cam-out risk
- Consistent dimensional accuracy maintained through ASME B18.6.3 manufacturing standards for reliable interchangeability
- Enhanced installation control with rounded head profile distributing clamp force evenly across surfaces
- Full threading capability along the entire 3/4" length enables maximum adjustment flexibility in assembly applications
Professional Applications & Engineering Value
These zinc-plated steel rounded head screws deliver exceptional value in industrial fastening applications where corrosion resistance and mechanical reliability are paramount. The 12-24 UNC coarse thread configuration provides superior pull-out resistance in various materials, while the Phillips drive system ensures efficient installation with standard tools. Engineered with 60,000 psi tensile strength and Rockwell B69 hardness, these fully threaded fasteners maintain integrity under sustained vibration and dynamic loading conditions. The rounded head design minimizes surface marring while providing ample bearing surface, making them ideal for assembly lines, machinery manufacturing, electrical enclosures, and structural components requiring repeated disassembly and reassembly.
Specification Summary & Compliance
Manufactured to ASME B18.6.3 specifications with Class 2A thread fit tolerances ensuring precise dimensional consistency. These inch-system screws feature right-hand UNC coarse threads with 0.216" diameter and full threading along the 3/4" length. Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations guarantees safe usage across various industrial sectors while meeting international material restriction standards.
