Balax 14287-000 Thread Forming Tap 9/16-12 Unc Bottoming Hss

Product Description

The BALAX 14287-000 is a thread forming tap in the BXB series, designed for cutting 9/16-12 UNC internal threads in blind hole applications. Unlike cutting taps, thread forming taps displace material rather than remove chips, producing stronger threads with a better surface finish. This tap is built from high-speed steel with a bright uncoated finish and features a bottoming chamfer with 2.5 chamfered threads, allowing threads to be formed close to the bottom of a blind hole. It carries a Class of Fit 3B rating and a Thread Limit of H7, making it suitable for close-tolerance fastener applications in industrial and mechanical assembly environments.

The 14287-000 is intended for blind hole threading in ductile and malleable materials where chip clearance is a concern. The bottoming chamfer design is especially useful when full thread depth must be reached near the bottom of a hole. With a thread length of 1 inch and an overall length of 3.594 inches, it fits standard tap handles and machine setups used by machinists, maintenance technicians, and production shops working with 9/16-12 UNC fastener specifications.

Key Features

• Bottoming chamfer with 2.5 chamfered threads for threading close to blind hole bottoms
• High-speed steel construction for durability across a range of ductile workpiece materials
• Bright uncoated finish suitable for use with standard tapping fluids and cutting oils
• H7 thread limit and Class 3B fit for close-tolerance thread production
• Single oil groove design to aid lubrication during the forming process
• Right-hand thread direction, 9/16-12 UNC thread standard

Compatibility

Designed as an OEM-style replacement or direct-use thread forming tap for applications requiring 9/16-12 UNC bottoming taps in blind hole threading setups.

Installation Notes

Thread forming taps require a correctly sized forming tap drill hole, which differs from standard cut tap drill sizes - consult the appropriate forming tap drill chart before drilling. Secure the workpiece and use adequate tapping fluid or cutting oil to reduce friction and extend tool life. This tap is intended for use in a tap handle, tapping head, or CNC machine configured for right-hand threading. Always back the tap out carefully to avoid galling the formed threads.