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Straight flute hand tap, 7/16 inch UNC bottoming, four flutes, high speed steel, bright finish

Westward

Westward Straight Flute Hand Tap 7/16"-14 UNC Bottoming 4 Flutes HSS

SKU CH-TFFD-8Z5W5

Cuts 7/16"-14 UNC threads to the bottom of blind holes using four-flute high-speed steel

  • Product typeHole, Drill, Bore & Wire Gauges
  • Cuts precise UNC threads with 14 threads per inch
  • Bottoming chamfer reaches full thread depth in blind holes
  • Four flutes clear chips efficiently during hand tapping
  • High-speed steel resists wear for longer tool life
  • Bright uncoated finish suits general-purpose steel threading

Westward 7/16"-14 UNC Bottoming Tap

This Westward straight flute hand tap cuts internal threads in a 7/16"-14 UNC size. It is designed for general-purpose threading tasks in maintenance and repair workshops. The bottoming chamfer allows threading close to the bottom of blind holes. Four flutes provide balanced chip clearance during hand operation.

High-Speed Steel Construction and Bright Finish

The tap is manufactured from high-speed steel for durability when cutting ferrous and non-ferrous materials. A bright, uncoated surface resists galling on softer metals and is easy to inspect for wear. Right-hand cutting direction matches standard fastener threads. The H5 thread limit produces a Class 2B fit for standard commercial tolerances.

Verify Hole Size and Thread Depth Before Use

Check that your drilled hole matches the required tap drill diameter for 7/16"-14 UNC threads. Ensure the workpiece thickness accommodates the 1.44 inch thread length and 3.16 inch overall length. This tool is not suited for machine tapping or high-volume production runs.

How it compares

Measured against everything we stock in Utility & Specialty Hand Tools, at today’s prices. Recalculated every night.

Price $11.99
Cheaper than about 75% of the 2,474 comparable items (median $23.99).

Specifications

Product
Brand nameWestward
Product typeHole, Drill, Bore & Wire Gauges

Questions about this item

What thread standard does the 7/16"-14 tap follow, and what class of fit does it produce?

It follows the UNC standard and produces a 2B class of fit for standard internal threads.

What are the overall length and thread length dimensions for this tap?

The overall length is 3.16 in and the thread length is 1.44 in for the 7/16"-14 size.

How do you start a bottoming tap correctly in a blind hole?

Drill the correct tap drill size to full depth, then start the tap straight with steady pressure to cut threads to the bottom.

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