6-40 Taps | McMaster-Carr

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System of Measurement

Thread Size

For Use On

Stainless Steel

Thread Length

Overall Length

For Hole Type

Maximum Tapping Depth

Tap Sizes Included

0-80, 1-64, 1-72, 2-56, 2-64, 3-48, 3-56, 4-40, 4-48

1 each of sizes 0-80, 1-64, 1-72, 2-56, 2-64, 3-48, 3-56, 4-40, 4-48

1 each of sizes 6-32, 6-40, 8-32, 8-36, 10-24, 10-32, 12-24, 12-28, 1/4"-20, 1/4"-28

1 each of sizes 6-40, 8-36, 10-24, 10-32, 1/4-28, 5/16-24, 3/8-24, 7/16-20, and 1/2-20

5-40, 5-44, 6-32, 6-40, 8-32, 8-36, 10-24, 10-32, 12-24, and 12-28

5/16"-18, 5/16"-24, 3/8"-16, 3/8"-24, 7/16"-14, 7/16"-20, 1/2"-13, and 1/2"-20

6-40, 8-36, 10-24, 10-32, 1/4"-28, 5/16"-24, 3/8"-24, 7/16"-20, and 1/2"-20

Flute Type

For Tap Thread Size

Chamfer Type

Thread Type

Pitch Diameter Limit

Sold As

Drill Bit Material

High-Speed Steel

Drill Bit Size

Number of Pieces

Material

18-8 Stainless Steel

Number of Flutes

Shank Type

Drill Bit Decimal Size Equivalent

Thread Direction

REACH

RoHS

DFARS Specialty Metals

Export Control Classification Number (ECCN)

How can we improve?

41 Products

Fabricating and Machining

Taps

Cut internal threads for fasteners, pipe, conduit, and more

Tap Extractors

Grip the flutes on a broken tap to remove it without damaging the surrounding threads

Tap and Drill Bit Sets

Tap and Drill Bit Sets

Drill holes and cut internal threads in a variety of sizes

Drill Taps

Drill and thread holes with the same bit

Fastening and Joining

Threaded Inserts

Threaded Inserts

Create new threads or repair stripped threads

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)