S-90087A895 5/16"-18 x 1" ASME B18.6.3, SAE J933 Tapping Screws
Tapping 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 industrial environments
- Excellent thread-cutting performance in aluminum, brass, cast iron and sheet metal without requiring pre-tapped holes
- Optimized drive efficiency with Phillips No. 4 drive that provides secure tool engagement and reduces cam-out risks
- Enhanced material engagement through coarse UNC threading that ensures strong holding power in various base materials
- Complete thread coverage with fully threaded design for maximum grip along the entire fastener length
- Industry-standard compliance meeting ASME B18.6.3 specifications for reliable performance and interchangeability
- Simplified installation with precise K drill bit (0.281") compatibility for accurate hole preparation and secure fastening
Professional Applications & Engineering Value
These Type F thread cutting screws deliver exceptional value in metal fabrication and assembly operations where tapping screws must create their own threads in challenging materials. The zinc-plated steel construction provides essential corrosion protection while maintaining the strength required for repeated installation cycles. The coarse UNC threading and specialized thread form efficiently displace material in aluminum, brass, cast iron, and sheet metal applications, eliminating the need for separate tapping operations and reducing assembly time. The combination of Phillips No. 4 drive and pan head design offers reliable driving performance with sufficient bearing surface for secure fastening in industrial equipment, machinery, and metal structures where vibration resistance and long-term reliability are critical.
Specification Summary & Compliance
These 5/16"-18 thread cutting screws feature standard UNC coarse threading with right-hand direction and full threading along the 1" length. Manufactured from zinc-plated steel with a rounded pan head profile and blunt tip type. The screws are engineered for use with K drill bits (0.281" diameter) and comply with ASME B18.6.3 specifications SAE J933, ensuring consistent quality and performance in industrial fastening applications.
