S-90096A406 5/16"-18 x 1" ASME B18.6.3, SAE J933 Tapping Screws

Key Features & Benefits at a Glance

• Superior thread cutting performance with Type F design for reliable installation in aluminum, brass, cast iron, and sheet metal without pre-tapped holes
• Enhanced corrosion resistance through zinc-plated steel construction, extending service life in industrial environments
• Maximum holding power achieved through fully threaded design and coarse UNC thread pattern for secure fastening in various materials
• Versatile drive options with combined external hex/slotted head for flexible installation using multiple tool types
• Integrated flange design providing wider bearing surface (0.676" diameter) for improved load distribution and vibration resistance
• Precision compatibility with standard K drill bit (0.281" diameter) for proper hole preparation and optimal thread engagement
• Regulatory compliance assurance meeting ASME B18.6.3 specifications and RoHS 3 environmental standards

Professional Applications & Engineering Value

These 5/16"-18 UNC tapping screws deliver exceptional engineering value in metal fabrication and assembly operations. The zinc-plated steel construction provides essential corrosion protection while maintaining high tensile strength for demanding applications. The Type F thread cutting design with coarse UNC threads enables efficient installation in aluminum, brass, cast iron, and sheet metal without stripping or cross-threading issues. The combination of external hex/slotted drive offers installation flexibility for both high-torque applications and precision adjustments. The integrated flange eliminates the need for separate washers, reducing assembly time while providing superior clamping force distribution. These features make these tapping screws ideal for automotive, machinery, and structural applications where reliability and fast installation are critical.

Specification Summary & Compliance

This flanged hex tapping screw features precise 5/16"-18 UNC coarse threads with full threading for maximum engagement. The screw maintains dimensional accuracy per ASME B18.6.3 specifications SAE J933, ensuring consistent performance and interchangeability. The product is fully RoHS 3 (2015/863/EU) compliant for environmental safety and meets industrial standards for thread cutting screws in metal applications. Critical dimensions include 1" length, 1/2" head width, and 0.676" flange diameter for proper fit and function in designated applications.