Import BDNA-20704 Straight Flute Tap 10-24 Unc Hss

Product Description

The IMPORT BDNA-20704 is a straight flute tap designed to cut 10-24 UNC internal threads in a wide range of materials. Built from high-speed steel (HSS) with a gold oxide finish, it offers improved lubricity and mild corrosion resistance during tapping operations. The plug chamfer style provides a gradual thread lead-in, making it well suited for through-hole and semi-blind hole applications. With 4 flutes and an H3 thread limit, this tap delivers consistent thread tolerance for general-purpose fastener work. Overall length is 2.375 inches. Machinists, maintenance technicians, and fabricators will find this tap appropriate for production and repair use alike.

This tap is used in machine shops, maintenance facilities, and fabrication environments where standard 10-24 UNC threaded holes are required. The plug chamfer lead makes it a practical choice for through-holes in steel, aluminum, brass, and similar materials. It is sized for use in standard tap handles or machine tap holders and is suited for both hand tapping and low-speed machine tapping operations where chip clearance is not a primary concern.

Key Features

• 10-24 UNC thread form for standard fastener compatibility
• 4-flute straight flute geometry for general-purpose through-hole and semi-blind hole tapping
• Plug chamfer provides 3-5 thread lead-in for gradual thread engagement
• High-speed steel (HSS) construction for durability across common workpiece materials
• Gold oxide finish improves surface lubricity and provides mild corrosion protection
• H3 thread limit for consistent tolerance control in standard applications

Compatibility

Designed as a general-purpose replacement or stock tap for any application requiring 10-24 UNC right-hand internal threads. Compatible with standard tap handles and machine tap holders accepting straight-shank taps of this size.

Installation Notes

Tapping operations should be performed by a qualified machinist or maintenance technician familiar with thread-cutting tools. Always use appropriate cutting fluid for the workpiece material to extend tap life and improve thread quality. Secure the workpiece firmly before tapping to prevent movement. Inspect the tap for wear or breakage before each use and never force a tap that shows resistance, as broken taps are difficult to remove.