Value Collection 20A010CB 10-24 Unc Hss Bottom Tap

Product Description

The VALUE COLLECTION 20A010CB is a straight flute bottom tap designed for cutting internal threads in through-holes and blind holes where threads must extend close to the bottom. Ground from high speed steel (HSS), this tap carries a 10-24 UNC thread form and features a 4-flute straight flute geometry. Straight flute taps are a standard choice for machine or hand tapping in a wide range of materials including mild steel, aluminum, brass, and plastics. The bottom chamfer allows the tap to begin threading within one to two threads of the hole bottom, making it the correct choice when thread depth in a blind hole is critical to the application.

This 10-24 UNC bottom tap suits general-purpose threading operations encountered by machinists, maintenance technicians, and fabricators working in light manufacturing, HVAC equipment fabrication, electrical panel assembly, and facility maintenance. It is appropriate for use in drill presses, CNC tapping centers, and hand tap handles. The 10-24 UNC size is a common fastener thread used extensively in sheet metal, electrical enclosures, and small mechanical assemblies.

Key Features

• 10-24 UNC thread form for wide fastener compatibility in light mechanical assemblies
• High speed steel (HSS) construction provides hardness and wear resistance across common workpiece materials
• 4-flute straight flute geometry supports chip clearance in through-holes and shallow blind holes
• Bottom chamfer (1-2 thread lead) allows threading to near full depth in blind holes
• Compatible with hand tap wrenches and machine tapping operations

Compatibility

Designed as a general-purpose OEM-style replacement or production tap suitable for any application requiring 10-24 UNC internal threads in metalworking, fabrication, or maintenance environments.

Installation Notes

Tapping operations should be performed by a qualified machinist or maintenance technician familiar with threading tools and speeds. Secure the workpiece firmly before beginning; use a properly sized tap drill (number 25 drill for 10-24 UNC) and apply cutting fluid appropriate for the workpiece material. Do not force the tap against the bottom of a blind hole without confirming adequate thread depth clearance, as tap breakage can result. Reverse the tap periodically during hand tapping to break chips and reduce the risk of binding.