Balax 11044-01T Thread Forming Tap 5-40 Unc Bottoming

Product Description

The BALAX 11044-01T is a thread forming tap designed for cutting 5-40 UNC internal threads in blind hole applications. Unlike cutting taps, thread forming taps displace material rather than removing chips, producing stronger threads with no swarf to clear. This tap is manufactured from high-speed steel with a titanium nitride (TiN) coating that extends tool life and reduces friction during forming. The bottoming chamfer style allows threading close to the bottom of a blind hole, with 2.5 chamfered threads for controlled thread engagement at entry. Rated for Class 2B and 3B fits, it is suited for close-tolerance fastener applications across general machining and assembly work.

This tap is used in machine shop, manufacturing, and assembly environments where blind hole threading is required in ferrous and non-ferrous materials. The BXB series and H4 thread limit make it appropriate for production tapping where consistent thread tolerance is critical. Typical installation scenarios include threading enclosures, brackets, and machined components that accept 5-40 screws. It is intended for use in standard tap holders or tapping heads with appropriate speed and feed for the material being tapped.

Key Features

• Thread forming design displaces material rather than cutting, producing stronger threads with no chips
• Bottoming chamfer with 2.5 chamfered threads for threading close to the base of blind holes
• TiN coating reduces friction and extends tool life compared to uncoated HSS
• H4 thread limit supports consistent Class 2B and 3B fit tolerances
• Right-hand thread direction, no coolant-through, no oil grooves - suited for standard tapping setups
• BXB series construction for reliable performance in production tapping applications

Compatibility

Designed for blind hole threading of 5-40 UNC threads with Class 2B and 3B fit requirements in materials suitable for thread forming, including aluminum, brass, copper, and mild steel.

Installation Notes

Thread forming taps require a properly sized forming tap drill hole, which is larger than a standard cut tap drill size - consult a thread forming drill chart before drilling. Use tapping fluid or cutting oil appropriate for the workpiece material to reduce forming torque and extend tap life. Secure the tap in a rigid holder or tapping head and ensure proper alignment to avoid tap breakage, particularly in small-diameter applications. Follow applicable shop safety procedures and machine guarding requirements when operating drill presses or tapping machines.