S-90087A904 3/8"-16 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 environments
- Excellent thread cutting performance in aluminum, brass, cast iron, and sheet metal without pre-tapping requirements
- Reliable fastening power with coarse UNC threads providing maximum holding strength in various materials
- Optimized drive efficiency through Phillips No. 4 head design ensuring secure tool engagement and reduced cam-out
- Full-threaded design delivers consistent clamping force along the entire 1" length for uniform load distribution
- Precision blunt tip facilitates easier starting and alignment while preventing material damage during installation
- Industry-standard compliance with ASME B18.6.3 and SAE J933 specifications guarantees consistent quality and performance
Professional Applications & Engineering Value
These 3/8"-16 UNC thread cutting screws are engineered to solve critical fastening challenges in metalworking and industrial assembly applications. The zinc-plated steel construction provides essential corrosion protection while the thread cutting design eliminates the need for separate tapping operations in materials like aluminum, brass, cast iron, and sheet metal. The coarse thread pattern ensures rapid installation and superior pull-out resistance, while the Phillips drive system offers reliable torque transmission for production environments. These tapping screws are particularly valuable in automotive, machinery, and metal fabrication where high-strength fastening and corrosion resistance are paramount for long-term structural integrity.
Specification Summary & Compliance
These tapping screws feature 3/8"-16 UNC coarse threads with standard Class 2A tolerance for consistent fit. The fully threaded design and 1" length provide complete fastening coverage. Manufactured to meet ASME B18.6.3 and SAE J933 specifications, ensuring dimensional accuracy and performance reliability. The zinc plating surface treatment offers enhanced corrosion protection, while the R drill bit size (0.339" diameter) recommendation ensures proper hole preparation for optimal thread engagement and holding strength.
