Spark Plug Taps | McMaster-Carr

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Chromium Carbide (CrC) Coated

Titanium Carbon Nitride (TiCN) Coated

Titanium Nitride (TiN) Coated

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Tap Sizes Included

1 each of sizes M3 × 0.5 mm, M4 × 0.7 mm, M5 × 0.8 mm, M6 × 1.0 mm, M8 × 1.25 mm, and M10 × 1.5 mm

1 each of sizes M3 × 0.50 mm, M3.5 × 0.60 mm, M4 × 0.70 mm, M4.5 × 0.75 mm, M5 × 0.80 mm

5 each of sizes M3 × 0.50 mm, M3 × 0.60 mm, M4 × 0.70 mm, M4 × 0.75 mm, M5 × 0.80 mm

M3 × 0.50 mm, M4 × 0.70 mm, M5 × 0.80 mm, M6 × 1.00 mm, M8 × 1.25 mm, M10 × 1.50 mm, and M12 × 1.75 mm

M5 × 0.90 mm, M6 × 1.00 mm, M6.3 × 1.00 mm, M7 × 1.00 mm, M8 × 1.00 mm, M8 × 1.25 mm

M6 × 1.00 mm, M8 × 1.25 mm, M10 × 1.50 mm, M12 × 1.75 mm, and M16 × 2.00 mm

M9 × 0.75 mm, M9 × 1.00 mm, M9 × 1.25 mm, M10 × 1.00 mm, M10 × 1.25 mm, M10 × 1.50 mm, M11 × 1.50 mm

M10

M12

M12 × 1.25 mm, M12 × 1.50 mm, and M12 × 1.75 mm, 1 each of sizes M14 × 1.25 mm, M14 × 1.50 mm

M14

M14 × 2.00 mm, M16 × 1.50 mm, M16 × 2.00 mm, M18 × 2.50 mm, M20 × 2.50 mm, and M24 × 3.00 mm

For Threading

Number of Flutes

Shank Type

Hex

Quick-Change Hex

Square

Pitch Diameter Limit

Maximum Tapping Depth

Number of Tapping Ends

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

RoHS

REACH

DFARS Specialty Metals

Exempt

Export Control Classification Number (ECCN)

EAR99

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How can we improve?

162 Products

Taps

For Spark Plug Threads

Spark Plug Taps

Repair damaged or worn threads in engines so spark plugs fit securely

3 products

For Fastener Threads

Taps

Cut threads into holes in most metals and plastic so screws, bolts, and rods fit snugly

37 products

Tap Sets

A variety of taps for threading holes so screws, bolts, and rods fit snugly

6 products

2-in-1 Taps

Start threading a hole with one end of these taps and finish it with the other

1 product

Hex-Bit Taps

No tap wrench needed—just snap into a bit screwdriver

1 product

Left-Hand Thread Taps

Create left-hand threads that prevent counter-clockwise rotating parts from loosening

99 products

Left-Hand Thread Tap Sets

A variety of taps to create a snug fit with left-hand fasteners

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Chip-Clearing Taps

Remove long, stringy chips to produce cleaner threads than standard taps

7 products

Chip-Clearing Taps for Steel and Stainless Steel

Made of a high-vanadium alloy for hardness and wear resistance

3 products

Chip-Clearing Tap Sets

A range of sizes that remove chips so they don’t ruin the threads or jam the tap

2 products

Chip-Clearing Taps for Nickel

Avoid heat buildup that can deform material and prematurely wear taps when threading nickel alloys

2 products

Chip-Clearing Taps for Aluminum, Brass, and Bronze

Long, gummy strands from soft metals won’t get stuck on the tap or in the hole

1 product

Hex-Bit Tap Sets

A range of tap sizes that snap into a bit screwdriver

1 product

For Pipe and Conduit Threads

Pipe and Conduit Taps

Add internal threads to pipe and conduit or components such as manifolds

1 product

Other Products

Thread Repair Tools

Restore lengths of rusted and damaged threads on screws, pipe, or conduit

1 product

Drill Taps

Drill and thread holes with the same bit

1 product