Cleveland C54454 Hand Tap 1/4-20 Unc Plug Hss Bright

Product Description

The CLEVELAND C54454 is a 1/4-20 UNC straight-flute hand tap designed for cutting internal threads in a range of ferrous and non-ferrous materials. Built from high speed steel with a bright uncoated finish, it features a plug chamfer, 4-flute geometry, and a right-hand thread direction. The tap conforms to a Class 3B fit with an H3 thread limit, making it suitable for close-tolerance threading applications. Overall length is 2.5 inches with a thread length of 0.63 inches. Machinists and tool-and-die technicians use this tap for both blind-hole and through-hole threading operations where consistent thread quality is required.

This tap is suited for manual tapping operations in job shops, maintenance environments, and production setups where hand tapping is the preferred method. It is appropriate for use in alloy steel, carbon steel, aluminum, and free-machining stainless steel. The 1/4-20 thread size is one of the most common fastener standards in North American manufacturing, making this tap a high-frequency shop tool. It belongs to the CLEVELAND Series 1002 and is sold individually.

Key Features

• 1/4-20 UNC thread form with right-hand cutting direction
• Plug chamfer for starting threads in blind holes or through holes
• 4-flute straight-flute geometry for chip control in a wide range of materials
• Class 3B fit, H3 thread limit for close-tolerance thread production
• High speed steel construction, bright uncoated finish
• Compatible with alloy steel, carbon steel, aluminum, and free-machining stainless steel

Compatibility

Designed for blind-hole and through-hole threading applications in alloy steel, carbon steel, aluminum, and free-machining stainless steel where a 1/4-20 UNC Class 3B thread form is required.

Installation Notes

Use in a properly aligned tap wrench or tapping fixture to prevent tap breakage and maintain thread axis alignment. Apply appropriate cutting fluid for the workpiece material before and during the tapping operation. Ensure the hole is drilled to the correct tap drill diameter for a 1/4-20 thread before starting. Power down or de-energize any associated equipment before performing hand-tapping operations on installed assemblies.