S-90096A585 5/16"-18 x 1 1/4" 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 environments
- Excellent material compatibility with thread-cutting Type F design that securely fastens aluminum, brass, cast iron, and sheet metal
- High-torque installation capability through external hex drive design for secure tightening and reduced stripping risk
- Enhanced load distribution with integrated flange design that eliminates the need for separate washers
- Reliable thread engagement with coarse UNC thread spacing that provides superior holding power in various materials
- Full-length threading ensures maximum grip strength along the entire screw length for secure fastening
- Industry-standard compliance meeting ASME B18.6.3 specifications for consistent quality and performance
Professional Applications & Engineering Value
These 5/16"-18 UNC tapping screws deliver exceptional engineering value in industrial fastening applications where material integrity and joint reliability are paramount. The zinc-plated steel construction provides essential corrosion protection while maintaining high tensile strength. The Type F thread-cutting design eliminates the need for pre-tapped holes, significantly reducing installation time and labor costs in aluminum, brass, cast iron, and sheet metal assemblies. The combination of coarse thread spacing and external hex drive ensures quick installation with standard tools while providing superior resistance to vibration loosening. These features make these screws ideal for construction, manufacturing, and heavy equipment applications where durable, reliable fastening solutions are required.
Specification Summary & Compliance
This 5/16"-18 UNC thread cutting screw features a 1-1/4" length with fully threaded design and blunt tip configuration. Manufactured to precise dimensional standards with Class 2A thread tolerance for consistent performance. The product complies with ASME B18.6.3 specifications (SAE J933) and is RoHS 3 (2015/863/EU) Compliant, ensuring environmental regulatory adherence. Designed for use with K drill bit size (0.281" diameter) for optimal hole preparation in various metal substrates.