Kennametal 1541624 Hand Tap 10-24 Unc Plug Rh Hss

Product Description

The KENNAMETAL 1541624 is a straight-flute hand tap designed for cutting 10-24 Unified National Coarse (UNC) threads in a right-hand direction. It carries a plug chamfer, which makes it the standard choice for through-hole threading and for starting threads in blind holes with adequate depth. Built from high-speed steel (HSS) with a bright, uncoated finish, the tap delivers consistent performance in cast iron and non-ferrous metals. The 4-flute design provides strength and stability during hand-tapping operations. Overall length is 2.38 inches with a thread length of 0.875 inches and a shank diameter of 0.194 inches.

This tap is suited for maintenance, repair, and production threading tasks where a 10-24 UNC thread form is required. It covers class-of-fit tolerances 2B and 3B at an H3 thread limit, making it appropriate for standard-fit fastener applications across general metalworking, light fabrication, and equipment repair. Machinists, toolroom technicians, and maintenance trades use this tap with a standard tap wrench or tapping handle for hand-driven threading in cast iron and non-ferrous workpieces.

Key Features

• 10-24 UNC thread form, right-hand cut, compatible with standard 10-24 fasteners
• Plug chamfer provides a versatile starting profile for both through-holes and deeper blind holes
• 4-flute straight-flute geometry delivers rigidity and clean thread form in hand-tapping applications
• High-speed steel construction handles cast iron and non-ferrous metals without coating-related compatibility concerns
• H3 thread limit and 2B/3B class of fit meet standard tolerance requirements for general fastener threads
• Bright, uncoated finish allows visual wear inspection during and after use

Compatibility

Designed for hand-tapping 10-24 UNC threads in cast iron and non-ferrous metals. Part of the KENNAMETAL Series 5305 and 5303 tap families.

Installation Notes

Installation is performed by machinists or maintenance technicians using a standard tap wrench. Secure the workpiece before tapping and ensure the tap is started square to the drilled hole to prevent thread distortion or tap breakage. Apply a suitable cutting fluid for the workpiece material to reduce friction and extend tap life. Do not exceed hand pressure rated for the tap diameter, and back off the tap periodically to break chips.