Balax 11985-000 Thread Forming Tap 10-24 Unc Plug Hss

Product Description

The BALAX 11985-000 is a thread forming tap in the BXP series, designed for cutting 10-24 UNC internal threads in through-hole applications. Unlike cutting taps, thread forming taps displace material rather than removing it, producing stronger threads with no chips to clear. Made from high-speed steel with a bright, uncoated finish, this plug chamfer tap carries a 4-thread lead-in for controlled engagement. The H5 thread limit ensures consistent class 2B and 3B fit tolerances. Overall length is 2.375 inches with a thread length of 0.6 inches and a tapping depth of 0.875 inches. Licensed tradespeople and machinists install this tap in production and MRO threading operations.

This tap is suited for through-hole threading in ferrous and non-ferrous materials where a clean, chip-free thread form is required. The plug chamfer style makes it appropriate for through holes where the tap can pass fully through the workpiece. It is commonly used in light manufacturing, assembly, and maintenance environments. The single oil groove design supports lubrication during the forming process, making it a practical choice for both manual tap handle use and machine tapping setups.

Key Features

• Thread forming design displaces material for stronger, chip-free 10-24 UNC threads
• High-speed steel construction provides wear resistance across a range of workpiece materials
• Plug chamfer with 4-thread lead-in for smooth, controlled thread engagement
• H5 thread limit maintains class 2B and 3B fit tolerances
• Single oil groove supports lubrication flow during forming
• Right-hand thread direction, bright uncoated finish

Compatibility

Designed for through-hole threading applications requiring 10-24 UNC class 2B or 3B fit. Compatible with standard tap handles and machine tapping chucks that accept a 0.194-inch shank diameter with a 0.152-inch square drive.

Installation Notes

Thread forming taps require adequate lubrication at all times during use - always apply cutting or tapping fluid appropriate for the workpiece material before and during tapping. Secure the workpiece fully before engaging the tap, and ensure the tap is started square to the hole to prevent cross-threading or tap breakage. Power down any machine tapping equipment before loading or removing the tap. Thread forming taps are not suitable for blind holes unless sufficient relief depth is available below the thread form.