Balax 10322-010 Thread Forming Sti Tap 2-56 Unc H2

Product Description

The BALAX 10322-010 is a thread forming STI tap designed for creating unified coarse threads in pre-drilled holes without cutting. It uses a cold-forming action that displaces material rather than removing chips, producing stronger threads with a better surface finish. Made from high-speed steel with a bright uncoated finish, this tap is suited for use in softer metals and ductile materials. It features a bottoming chamfer for threading close to the bottom of blind holes. The H2 thread limit provides controlled dimensional accuracy for tight-tolerance applications. It is used in precision machining and repair work performed by machinists and maintenance professionals.

This tap is configured for 2-56 UNC threads, making it applicable in small-fastener applications found in electronics enclosures, instrument panels, and light mechanical assemblies. The bottoming chamfer style allows threading to within a few pitches of the hole bottom, which is critical where thread engagement depth is limited. The BXSTI series designation indicates compatibility with STI insert thread repair systems, supporting both new production threading and helicoil-style thread repair work.

Key Features

• Thread forming design displaces material rather than cutting, producing chip-free threads
• Bottoming chamfer allows threading close to the bottom of blind holes
• H2 thread limit for controlled tolerance in precision applications
• High-speed steel construction provides durability in small-tap applications
• Bright uncoated finish suitable for use with standard tapping fluids
• BXSTI series design supports STI thread insert repair applications

Compatibility

Designed for use in STI thread forming applications within the BXSTI series, compatible with 2-56 UNC thread insert systems. The 75 percent thread drill size for this tap is 0.1000 inches.

Installation Notes

This tap should be installed by a qualified machinist or maintenance technician using a calibrated tap wrench or CNC tapping setup. Ensure the workpiece is securely fixtured and the correct drill size is used prior to tapping. Apply an appropriate tapping fluid for the workpiece material to reduce friction during the forming process. Reverse the tap periodically to relieve stress and avoid tap breakage in deeper holes.