S-90086A673 8-32 x 1" ASME B18.6.3, SAE J933 Tapping Screws

Key Features & Benefits at a Glance

• Superior thread cutting performance for reliable fastening in aluminum, brass, cast iron, and sheet metal without pre-tapping
• Enhanced corrosion resistance with Black-Oxide Steel finish, extending service life in demanding industrial environments
• Optimized drive engagement through No. 2 Phillips drive design, reducing cam-out and improving installation efficiency
• Perfect flush mounting with 82° countersink angle and standard flat head profile for clean, professional finishes
• Maximum thread engagement with fully threaded design and coarse UNC thread spacing for superior holding power
• Precision compatibility with No. 26 drill bit (0.147" diameter) for accurate hole preparation and secure fastening
• Right-hand threading for standard installation procedures and consistent performance across applications

Professional Applications & Engineering Value

These 8-32 UNC thread cutting screws deliver exceptional engineering value by solving critical fastening challenges in metalworking applications. The Black-Oxide Steel construction provides essential corrosion protection while maintaining the strength required for demanding environments. The F-type tapping screw design with thread cutting capability eliminates the need for separate tapping operations, significantly reducing assembly time and labor costs in aluminum, brass, cast iron, and sheet metal applications. The Phillips flat head with 82° countersink ensures flush mounting that prevents snagging and maintains aerodynamic surfaces in machinery and equipment. These fully threaded screws maintain consistent coarse thread engagement throughout the fastener length, providing maximum pull-out resistance in both thin and thick materials commonly encountered in industrial manufacturing and metal fabrication.

Specification Summary & Compliance

These thread cutting screws feature precise 8-32 UNC coarse threads with standard Class 2A tolerances for consistent performance. Manufactured to meet ASME B18.6.3 specifications (SAE J933) ensuring dimensional accuracy and mechanical properties. Fully RoHS 3 (2015/863/EU) compliant for environmental safety and international market acceptance. The right-hand thread direction and fully threaded design provide reliable fastening performance across all specified applications with recommended No. 26 drill bit preparation.