S-93878A128 8-32 x 3/8" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction, extending service life in demanding industrial environments
• Efficient thread forming capability creates strong, permanent threads in steel, aluminum, brass, cast iron, and sheet metal without pre-tapping
• Optimized installation performance with UNC coarse thread spacing and compatibility with #23 drill bit (0.154") for faster, more precise assembly
• Enhanced durability through fully threaded design and blunt tip, providing maximum grip strength and resistance to vibration loosening
• Versatile pan head design with slotted drive offers reliable fastening across multiple metal applications while maintaining a low-profile appearance
• Right-hand threading ensures standard installation compatibility and ease of use for maintenance and repair operations
• Precision dimensional accuracy with Class 2A thread tolerances for consistent performance and interchangeability

Professional Applications & Engineering Value

These 8-32 UNC thread forming tapping screws deliver exceptional engineering value by solving critical fastening challenges in metalworking and industrial assembly. The zinc-plated steel construction provides essential corrosion protection for applications exposed to environmental elements, while the thread forming design eliminates the need for separate tapping operations, significantly reducing installation time and labor costs. The slotted pan head configuration ensures reliable torque transmission and secure fastening in steel, aluminum, brass, cast iron, and sheet metal components. With coarse thread spacing and full threading, these screws maintain superior holding power in vibration-prone environments, making them ideal for construction, manufacturing, and metal fabrication where joint integrity is paramount.

Specification Summary & Compliance

Manufactured to precise dimensional standards with Class 2A thread tolerances and UNC thread specifications. These thread forming screws comply with industry-standard manufacturing practices for metal fasteners. The zinc plating provides corrosion resistance while maintaining compliance with industrial fastener requirements. Engineered for use with #23 drill bit (0.154" diameter) to ensure proper hole preparation and optimal thread engagement in various metal substrates.