Balax 11066-000 Thread Forming Tap 5-40 Unc Plug Hss

Product Description

The BALAX 11066-000 is a thread forming tap designed for producing internal threads without cutting. It displaces material rather than removing chips, resulting in stronger threads and no chip disposal concerns. Sized for 5-40 UNC threading, this plug-chamfer tap is manufactured from high-speed steel with a bright uncoated finish. It carries a Thread Limit of H6 and is built to the BXP series standard. Licensed HVAC, plumbing, and electrical trades as well as machining professionals rely on this tap for through-hole threading applications where thread integrity and dimensional consistency are critical.

This tap is suited for through-hole threading in soft to medium-hardness metals, plastics, and similar machinable materials. The 5-40 UNC specification makes it a common choice for small fastener threads found in electrical enclosures, instrumentation panels, HVAC control assemblies, and light mechanical hardware. The plug chamfer with 4 chamfered threads provides a gradual thread engagement that eases starting and reduces the torque required during forming.

Key Features

• Thread forming design displaces material for stronger threads and eliminates chips
• 5-40 UNC thread size with right-hand thread direction
• Plug chamfer with 4 chamfered threads for controlled engagement and easy starting
• High-speed steel construction for durability across repeated use cycles
• H6 thread limit for consistent dimensional accuracy
• No oil grooves and no coolant-through requirement - suited for dry or lightly lubricated hand or machine tapping

Compatibility

Designed as an OEM-style replacement or direct-use thread forming tap for applications requiring 5-40 UNC right-hand internal threads in through-hole configurations.

Installation Notes

Installation should be performed by a qualified machinist or trade professional familiar with tapping procedures. Always secure the workpiece before tapping, use appropriate tapping fluid or cutting oil for the material being threaded, and ensure the tap is driven at a low, controlled speed to avoid galling or tap breakage. Do not reverse the tap abruptly - back off gradually to relieve any stress on the formed threads.