Import BDNA--20796-1 Straight Flute Tap 1-14 Uns

Product Description

The IMPORT BDNA--20796-1 is a straight flute bottoming tap designed for cutting 1-14 UNS right-hand internal threads in through or blind holes where full thread depth close to the bottom is required. Manufactured from high-speed steel with a gold oxide coating, this tap offers good wear resistance and lubricity during threading operations. With 4 flutes and an H4 thread limit, it is suited for producing accurate, consistent threads in a range of materials commonly encountered in mechanical and maintenance applications.

This bottoming tap is used in applications where a plug or taper tap has already started the thread and the final passes must reach near the bottom of a blind hole. It is appropriate for use in machine shop, maintenance, repair, and overhaul environments. The 1-14 UNS thread form is a unified national special thread, used in specialized fastening applications across industrial, mechanical, and equipment manufacturing contexts.

Key Features

• Bottoming chamfer allows threading to within a few threads of the bottom of a blind hole
• High-speed steel construction provides durability across a broad range of workpiece materials
• Gold oxide coating reduces friction and improves chip flow during cutting
• 4-flute design offers balanced cutting action and chip evacuation
• H4 thread limit ensures controlled tolerance for precise thread fit
• Right-hand thread direction for standard threading operations

Compatibility

Designed as an OEM-style replacement or standard tooling tap for applications requiring a 1-14 UNS straight flute bottoming tap in high-speed steel.

Installation Notes

This tap is installed by machinists and maintenance technicians using a tap wrench, tapping head, or CNC tapping attachment. Ensure the workpiece is securely fixtured before threading. Use appropriate cutting fluid for the workpiece material to extend tap life and improve thread quality. Follow standard threading procedures and reverse periodically to break chips when working in deep or blind holes.