McMaster-Carr

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	System of Measurement System of Measurement

Inch

Metric

	Thread Size Thread Size

	Thread Type Thread Type

	Thread Pitch Thread Pitch

	For Use On For Use On	Show

Hardened Steel

	For Use On For Use On	Hide

Warning: Products have one, but not necessarily all, of the selected characteristics.

	Material Material

	Flute Type Flute Type

	Straight
	Spiral Point
	Spiral

	Application Application

Through-Hole Threading

Closed-End Hole Threading

	Thread Direction Thread Direction

Right Hand

Left Hand

	Chamfer Type Chamfer Type

Plug

Bottoming

	Number of Flutes Number of Flutes

	Individual/Set Individual/Set

Individual

Set

	Shank Type Shank Type


Square	Round

	Thread Length Thread Length

	Finish Finish

Uncoated

Titanium Nitride (TiN)
Coated

Black Oxide

Titanium Aluminum Nitride
(TiAlN) Coated

Gold Oxide

Aluminum Titanium Nitride
(AlTiN) Coated

	Maximum Tapping Depth Maximum Tapping Depth

	Overall Length Overall Length

	Pitch Diameter Limit Pitch Diameter Limit

Variable

Not
Rated

	Drill Bit Decimal Size Equivalent Drill Bit Decimal Size Equivalent

	Drill Bit Size Drill Bit Size

	Number of Tapping Ends Number of Tapping Ends

	Pipe Size Pipe Size

	Threads Per Inch Threads Per Inch

12-32

14-40

16-48

18-56

24-56

32-56

32-64

40-64

56-80

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141 Products

Internal Thread Cutting

Carbide Taps

Use these taps on hard and abrasive material, such as heat-treated metal, nickel, and fiberglass.

Taps for Hardened Steel and Iron

Tap threads into hardened steel and iron. These cobalt steel taps have straight flutes for high durability.

Pipe and Conduit Thread
Taps for Hardened Steel

Made of cobalt steel, these taps are for use on hard pipe and conduit material, such as hardened steel.

Thread Mills

Cut a range of thread sizes with a single tool. These thread mills can also produce both right-hand and left-hand threads.

Coil Thread Taps

The coil-style threads produced by these taps are shallower and more widely spaced than standard thread sizes. Use them for quick threading action with compatible fasteners.

Internal Thread Repairing

Internal Thread Repairing File Sets

Restore bolt, hole, pipe, and conduit threading with this set of four files.

Internal Thread Repairing Files

One file restores a range of thread sizes in most hole diameters.

Internal Pipe and Conduit
Thread Repairing Files

Repair rusted and damaged threads in pipe and conduit. These files are for use in most hole diameters.

Any-Pitch Internal
Thread Repairing Tools

These tools have adjustable blades to repair any inch or metric thread size. Use them on threaded holes with an ID from 5/16" to 1-1/4".

Internal Threading Sets

Chip-Clearing Tap
Sets for Through-Holes

Sets include multiple tap sizes for threading different hole diameters.

Chip-Clearing Tap and Drill
Bit Sets for Through-Holes

Also known as gun taps, the taps in these sets have spiral-point flutes that push chips ahead of the tap and out of through holes.

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