Cleveland C54290 Hand Tap 8-36 Unf Plug Rh Hss Bright

Product Description

The CLEVELAND C54290 is a straight-flute hand tap designed for cutting 8-36 UNF internal threads in both blind holes and through-holes. It features a plug chamfer for general-purpose starting and a right-hand thread direction. The tap is manufactured from high-speed steel (HSS) with a bright, uncoated finish, making it suited for moderate-duty threading operations. At 2.125 inches overall length with a 0.38-inch thread length, it fits standard tap handles used by machinists, maintenance technicians, and tool-room operators working on small-diameter threaded fastener applications.

This tap is intended for hand-tapping operations on a range of workpiece materials including alloy steel, carbon steel, aluminum, and free-machining stainless steel. The 4-flute straight-flute configuration provides good thread form and chip control in these materials at the No. 8-36 thread size. It is commonly used in precision assembly, light fabrication, and field repair contexts where a reliable plug-start hand tap is required. The Series 1002 designation identifies this as a standard catalog production tap.

Key Features

• 8-36 UNF thread form with plug chamfer for general-purpose hand tapping
• 4-flute straight-flute geometry supports consistent thread form in blind and through-hole applications
• High-speed steel construction provides hardness and wear resistance for ferrous and non-ferrous materials
• Bright, uncoated finish suitable for use with cutting fluids across a broad material range
• H2 thread limit for close-tolerance 2B and 3B class-of-fit threads
• Right-hand thread direction; compatible with standard tap handles and T-handles

Compatibility

Designed as a standard replacement or stock hand tap for any application requiring an 8-36 UNF plug-chamfer tap in high-speed steel with an H2 thread limit and 2B or 3B class of fit.

Installation Notes

Install and operate this tap using a properly sized tap handle or T-handle rated for the No. 8 thread diameter. Always apply an appropriate cutting fluid for the workpiece material before and during tapping to reduce heat and extend tool life. Back the tap off periodically when tapping blind holes to break chips and prevent tap breakage. Ensure the workpiece is securely fixtured and the tap is started perpendicular to the hole to maintain thread alignment and avoid tap breakage.