Value Collection MSC-04477188 3/4-16 Unf Straight Flute Tap

Product Description

The VALUE COLLECTION MSC-04477188 is a straight flute tap designed for cutting 3/4-16 UNF internal threads in a range of metalworking and machining applications. Built from high-speed steel with a bright, uncoated finish, this tap offers solid wear resistance for general-purpose threading work. It features a taper chamfer that eases thread entry and reduces cutting force during initial engagement. With 4 flutes and a 3B class of fit, it produces threads suited to standard fastener assemblies where moderate tolerances are required. The overall length is 4.25 inches with a 2-inch thread length, making it appropriate for through-hole and moderately deep tapping operations.

This tap is intended for use in machine shops, maintenance facilities, and industrial production environments where UNF threads are a standard requirement. Machinists, tool-and-die makers, and maintenance technicians working with steel, aluminum, brass, and similar machinable materials will find this tap suitable for hand tapping and low-speed machine tapping setups. The straight flute geometry works best in through-holes or applications where chip control is managed by the operator or machine setup.

Key Features

• 3/4-16 UNF thread form for fine-pitch unified national thread applications
• 4 straight flutes for consistent chip formation in through-hole tapping
• Taper chamfer (7-10 threads) reduces entry force and guides the tap on start
• 3B class of fit meets standard tolerance requirements for UNF fastener assemblies
• H3 thread limit provides controlled oversize for plated or close-tolerance applications
• High-speed steel construction offers good hardness and resistance to wear at moderate cutting speeds
• Bright, uncoated finish — no coating buildup to affect thread dimensions

Compatibility

Designed for cutting 3/4-16 UNF internal threads in standard through-hole and shallow blind-hole applications across common machinable metals and plastics.

Installation Notes

Threading operations with this tap should be performed by a qualified machinist or maintenance technician familiar with proper tap speeds, feeds, and lubrication for the workpiece material. Always use an appropriate cutting fluid to reduce heat and extend tap life. Secure the workpiece firmly and ensure the tap is started perpendicular to the surface to avoid cross-threading or tap breakage. Do not force the tap — back off periodically to clear chips when tapping by hand.