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    273 Products

    For Threading

    For Threading

    Performance

    Taps

    Image of Product. Front orientation. Taps. Taps.
    Cut threads into holes so screws, bolts, and rods fit snugly. Our basic taps have straight flutes that are good for most jobs.
    Cobalt Steel—These taps resist higher temperatures and and last twice as long as high-speed steel taps. They thread hard materials such as iron and hardened steel without damaging their cutting edges.
    Uncoated—The economical choice, these won't last as long as coated taps.
    Titanium Nitride (TiN) Coated—Run at higher speeds and last twice as long as uncoated taps.
    Plug Chamfer—Our go-to chamfer type, these thread both through holes and blind holes. The tapered section is shorter than a taper chamfer and longer than bottoming chamfer. As a result, they're easier to turn than bottoming taps but require more force than taper taps.
    Number of Flutes—Taps with fewer flutes have more space to capture chips, so you won’t have to clear them as often. However, they can be more difficult to keep straight in the hole.
    Drill Bit
    Plug Chamfer
    Thread Size
    Thread
    Lg.
    Overall
    Lg.
    Thread
    Type
    No. of
    Flutes
    Size
    Decimal Size
    Equiv.
    Shank
    Type
    Each
    Cobalt Steel
     
    Uncoated
    2-56
    		7/16"1 13/16"UNC
    		251 Ga.
    		0.067"Square0000000000000
    4-40
    		5/16"1 7/8"UNC
    		343 Ga.
    		0.089"Square000000000000
    5-40
    		5/16"1 15/16"UNC
    		338 Ga.
    		0.1015"Square000000000000
    6-32
    		3/8"2"UNC
    		336 Ga.
    		0.1065"Square000000000000
    8-32
    		3/8"2 1/8"UNC
    		329 Ga.
    		0.136"Square000000000000
    10-24
    		1/2"2 3/8"UNC
    		325 Ga.
    		0.1495"Square000000000000
    10-32
    		1/2"2 3/8"UNF
    		321 Ga.
    		0.159"Square000000000000
    12-24
    		1/2"2 1/2"UNC
    		216 Ga.
    		0.177"Square000000000000
    1/4"-20
    		5/8"2 1/2"UNC
    		37 Ga.
    		0.201"Square000000000000
    1/4"-28
    		5/8"2 1/2"UNF
    		33 Ga.
    		0.213"Square000000000000
    5/16"-18
    		11/16"2 23/32"UNC
    		4F
    		0.257"Square000000000000
    5/16"-24
    		11/16"2 23/32"UNF
    		4I
    		0.272"Square000000000000
    3/8"-16
    		3/4"2 15/16"UNC
    		45/16"
    		0.3125"Square000000000000
    3/8"-24
    		3/4"2 15/16"UNF
    		4Q
    		0.332"Square000000000000
    7/16"-14
    		7/8"3 5/32"UNC
    		4U
    		0.368"Square000000000000
    7/16"-20
    		7/8"3 5/32"UNF
    		425/64"
    		0.3906"Square000000000000
    1/2"-13
    		15/16"3 3/8"UNC
    		427/64"
    		0.4219"Square000000000000
    1/2"-20
    		15/16"3 3/8"UNF
    		429/64"
    		0.4531"Square000000000000
    5/8"-11
    		1 3/32"3 13/16"UNC
    		417/32"
    		0.5313"Square000000000000
    5/8"-18
    		1 3/32"3 13/16"UNF
    		437/64"
    		0.5781"Square000000000000
    3/4"-10
    		1 7/32"4 1/4"UNC
    		421/32"
    		0.6563"Square000000000000
    3/4"-16
    		1 7/32"4 1/4"UNF
    		411/16"
    		0.6875"Square000000000000
    1"-8
    		2 1/2"5 1/8"UNC
    		47/8"
    		0.875"Square0000000000000
    M2 × 0.4 mm7/16"1 13/16"Metric
    		31.6 mm0.063"Square000000000000
    M2.5 × 0.45 mm7/16"1 7/8"Metric
    		32.05 mm
    		0.0807"Square000000000000
    M3 × 0.5 mm3/8"2 1/64"Metric
    		32.5 mm0.0984"Square000000000000
    M4 × 0.7 mm3/8"2 15/64"Metric
    		33.3 mm
    		0.1299"Square000000000000
    M5 × 0.8 mm1/2"2 31/64"Metric
    		34.2 mm
    		0.1654"Square000000000000
    M6 × 1 mm5/8"2 41/64"Metric
    		35 mm0.1968"Square000000000000
    M7 × 1 mm21/32"2 7/8"Metric
    		46 mm0.2362"Square0000000000000
    M8 × 1 mm11/16"2 7/8"Metric
    		47 mm0.2756"Square0000000000000
    M8 × 1.25 mm11/16"2 57/64"Metric
    		46.7 mm
    		0.2638"Square000000000000
    M10 × 1.25 mm3/4"3 9/64"Metric
    		48.5 mm
    		0.3346"Square0000000000000
    M10 × 1.5 mm3/4"3 9/64"Metric
    		48.5 mm
    		0.3346"Square000000000000
    M12 × 1.75 mm15/16"3 3/8"Metric
    		410.2 mm
    		0.4015"Square000000000000
    M14 × 1.5 mm1"3 9/16"Metric
    		412.5 mm
    		0.4921"Square0000000000000
    M14 × 2 mm1"3 9/16"Metric
    		412 mm0.4724"Square0000000000000
    M16 × 1.5 mm1 3/32"3 13/16"Metric
    		414.5 mm
    		0.5709"Square000000000000
    M16 × 2 mm1 3/32"3 13/16"Metric
    		414 mm0.5512"Square000000000000
    M18 × 1.5 mm1 11/64"4"Metric
    		416.5 mm
    		0.6496"Square0000000000000
    M18 × 2.5 mm1 11/64"4"Metric
    		415.5 mm
    		0.6102"Square0000000000000
    M20 × 1.5 mm1 21/64"4 15/32"Metric
    		418.5 mm
    		0.7283"Square0000000000000
    M20 × 2.5 mm1 7/32"4 15/32"Metric
    		417.5 mm
    		0.689"Square000000000000
     
    Titanium Nitride (TiN) Coated
    2-56
    		7/16"1 13/16"UNC
    		251 Ga.
    		0.067"Square000000000000
    4-40
    		5/16"1 7/8"UNC
    		343 Ga.
    		0.089"Square0000000000000
    5-40
    		5/16"1 15/16"UNC
    		338 Ga.
    		0.1015"Square000000000000
    6-32
    		3/8"2"UNC
    		336 Ga.
    		0.1065"Square0000000000000
    8-32
    		3/8"2 1/8"UNC
    		329 Ga.
    		0.136"Square0000000000000
    10-24
    		1/2"2 3/8"UNC
    		325 Ga.
    		0.1495"Square0000000000000
    10-32
    		1/2"2 3/8"UNF
    		321 Ga.
    		0.159"Square0000000000000
    12-24
    		1/2"2 1/2"UNC
    		216 Ga.
    		0.177"Square000000000000
    1/4"-20
    		5/8"2 1/2"UNC
    		37 Ga.
    		0.201"Square0000000000000
    1/4"-28
    		5/8"2 1/2"UNF
    		33 Ga.
    		0.213"Square0000000000000
    5/16"-18
    		11/16"2 23/32"UNC
    		3F
    		0.257"Square0000000000000
    5/16"-24
    		11/16"2 23/32"UNF
    		3I
    		0.272"Square0000000000000
    3/8"-16
    		3/4"2 15/16"UNC
    		35/16"
    		0.3125"Square0000000000000
    3/8"-24
    		3/4"2 15/16"UNF
    		3Q
    		0.332"Square0000000000000
    7/16"-14
    		7/8"3 5/32"UNC
    		4U
    		0.368"Square000000000000
    7/16"-20
    		7/8"3 5/32"UNF
    		425/64"
    		0.3906"Square000000000000
    1/2"-13
    		15/16"3 3/8"UNC
    		427/64"
    		0.4219"Square000000000000
    1/2"-20
    		15/16"3 3/8"UNF
    		429/64"
    		0.4531"Square000000000000
    5/8"-11
    		1 3/32"3 13/16"UNC
    		417/32"
    		0.5313"Square000000000000
    5/8"-18
    		1 3/32"3 13/16"UNF
    		437/64"
    		0.5781"Square000000000000
    3/4"-10
    		1 7/32"4 1/4"UNC
    		421/32"
    		0.6563"Square000000000000
    3/4"-16
    		1 7/32"4 1/4"UNF
    		411/16"
    		0.6875"Square000000000000
    1"-8
    		2 1/2"5 1/8"UNC
    		37/8"
    		0.875"Square0000000000000
    M6 × 1 mm5/8"2 1/2"Metric
    		35 mm0.1968"Square0000000000000
    M8 × 1.25 mm11/16"2 23/32"Metric
    		36.7 mm
    		0.2637"Square0000000000000
    M10 × 1.5 mm3/4"2 15/16"Metric
    		38.5 mm
    		0.3346"Square0000000000000
    M12 × 1.75 mm15/16"3 3/8"Metric
    		410.2 mm
    		0.4015"Square0000000000000
     

    Chip-Clearing Taps for Aluminum, Brass, and Bronze

    Image of ProductInUse. Front orientation. Contains Annotated. Taps. Chip-Clearing Taps for Aluminum, Brass, and Bronze, Spiral Flute for Through Holes.

    Spiral Flute for Through Holes

    Image of ProductInUse. Front orientation. Taps. Chip-Clearing Taps for Aluminum, Brass, and Bronze, Spiral Flute for Blind Holes.

    Spiral Flute for Blind Holes

    Long, gummy strands from soft metals won’t get stuck on the tap or in the hole. With two layers of slippery coating over spiral flutes, these taps prevent chip buildup that can harm the threads and the tap.
    Cobalt Steel—Tough and wear resistant, cobalt taps last twice as long as high-speed steel. They also can run at higher temperatures without damage to their cutting edges.
    Spiral Flute for Through Holes—Left-hand flutes push chips ahead of the tap and out of through holes.
    Spiral Flute for Blind Holes—Pull chips back toward the tap so they won't build up in blind holes.
    Plug Chamfer—Our go-to chamfer type. With a longer taper than a bottoming chamfer, they are easier to turn but won't thread as close the bottom of a hole.
    Bottoming Chamfer—These taps have the shortest taper to thread close to the bottom of blind holes. They require the most force to turn, so they’re often used to finish holes started by plug-chamfer taps.
    Drill Bit
    Spiral Flute for
    Through Holes
    Spiral Flute for Blind Holes
    Thread Size
    Thread
    Lg.
    Overall
    Lg.
    Thread
    Type
    Size
    Decimal Size
    Equiv.
    Shank
    Type
    Chamfer
    Type
    No. of
    Flutes
    Each
    Chamfer
    Type
    No. of
    Flutes
    Each
    Cobalt Steel
     
    Titanium Nitride (TiN) Coated/Chromium Carbide (CrC) Coated
    2-56
    		5/16"1 49/64"UNC
    		51 Ga.
    		0.067"SquarePlug20000000000000Bottoming30000000000000
    4-40
    		5/16"2 13/64"UNC
    		43 Ga.
    		0.089"SquarePlug2000000000000Bottoming3000000000000
    5-40
    		5/16"2 13/64"UNC
    		38 Ga.
    		0.1015"SquarePlug2000000000000Bottoming3000000000000
    6-32
    		11/32"2 13/64"UNC
    		36 Ga.
    		0.1065"SquarePlug2000000000000Bottoming3000000000000
    8-32
    		7/16"2 31/64"UNC
    		29 Ga.
    		0.136"SquarePlug2000000000000Bottoming3000000000000
    10-24
    		15/32"2 49/64"UNC
    		25 Ga.
    		0.1495"SquarePlug2000000000000Bottoming3000000000000
    10-32
    		15/32"2 49/64"UNF
    		21 Ga.
    		0.159"SquarePlug2000000000000Bottoming3000000000000
    1/4"-20
    		19/32"3 5/32"UNC
    		7 Ga.
    		0.201"SquarePlug2000000000000Bottoming3000000000000
    1/4"-28
    		19/32"3 5/32"UNF
    		3 Ga.
    		0.213"SquarePlug2000000000000Bottoming3000000000000
    5/16"-18
    		19/32"3 35/64"UNC
    		F
    		0.257"SquarePlug2000000000000Bottoming3000000000000
    5/16"-24
    		19/32"3 35/64"UNF
    		I
    		0.272"SquarePlug2000000000000—————0
    3/8"-16
    		3/4"3 15/16"UNC
    		5/16"
    		0.3125"SquarePlug2000000000000Bottoming3000000000000
    7/16"-14
    		23/32"3 15/16"UNC
    		U
    		0.368"SquarePlug3000000000000—————0
    7/16"-20
    		23/32"3 15/16"UNF
    		25/64"
    		0.3906"SquarePlug3000000000000—————0
    1/2"-13
    		29/32"4 21/64"UNC
    		27/64"
    		0.4219"SquarePlug3000000000000Bottoming3000000000000
    1/2"-20
    		29/32"4 21/64"UNF
    		29/64"
    		0.4531"SquarePlug3000000000000—————0
    M3 × 0.5 mm5/16"2 13/64"Metric
    		2.5 mm0.0984"SquarePlug2000000000000Bottoming3000000000000
    M3.5 × 0.6 mm11/32"2 13/64"Metric
    		2.9 mm0.1142"SquarePlug2000000000000—————0
    M4 × 0.7 mm7/16"2 31/64"Metric
    		3.3 mm
    		0.1299"SquarePlug2000000000000Bottoming3000000000000
    M5 × 0.8 mm15/32"2 49/64"Metric
    		4.2 mm
    		0.1654"SquarePlug2000000000000Bottoming3000000000000
    M6 × 1 mm15/32"3 5/32"Metric
    		5 mm0.1968"SquarePlug2000000000000Bottoming3000000000000
    M7 × 1 mm19/32"3 35/64"Metric
    		6 mm0.2362"SquarePlug2000000000000—————0
    M8 × 1.25 mm19/32"3 35/64"Metric
    		6.7 mm
    		0.2638"SquarePlug2000000000000—————0
    M10 × 1.25 mm23/32"3 15/16"Metric
    		8.7 mm
    		0.3425"SquarePlug2000000000000—————0
    M10 × 1.5 mm23/32"3 15/16"Metric
    		8.5 mm
    		0.3346"SquarePlug2000000000000Bottoming3000000000000
    M12 × 1.25 mm27/32"4 21/64"Metric
    		10.8 mm
    		0.4251"SquarePlug3000000000000—————0
    M12 × 1.5 mm27/32"4 21/64"Metric
    		10.5 mm
    		0.4133"SquarePlug3000000000000Bottoming3000000000000
    M12 × 1.75 mm27/32"4 21/64"Metric
    		10.2 mm
    		0.4016"SquarePlug3000000000000Bottoming3000000000000
     

    Chip-Clearing Taps for Titanium

    Image of ProductInUse. Front orientation. Contains Annotated. Taps. Chip-Clearing Taps for Titanium, Spiral Flute for Through Holes.

    Spiral Flute for Through Holes

    Image of ProductInUse. Front orientation. Contains Annotated. Taps. Chip-Clearing Taps for Titanium, Spiral Flute for Blind Holes.

    Spiral Flute for Blind Holes

    Sharp, angled flutes cut through tough titanium alloys while reducing heat and preventing clogs. These taps draw out chips gradually to create clean threads and protect the tap from jamming or breaking.
    Cobalt Steel—Tough and wear resistant, cobalt taps last twice as long as high-speed steel. They also can run at higher temperatures without damage to their cutting edges.
    Black Oxide—The dark finish increases wear resistance and reduces friction to improve chip flow, so these taps can last 50% longer than uncoated taps.
    Spiral Flute for Through Holes—Left-hand flutes push chips ahead of the tap and out of through holes.
    Spiral Flute for Blind Holes—Pull chips back toward the tap so they won't build up in blind holes.
    Plug Chamfer—Our go-to chamfer type. With a longer taper than a bottoming chamfer, they are easier to turn but won't thread as close the bottom of a hole.
    Drill Bit
    Spiral Flute for
    Through Holes
    Spiral Flute for Blind Holes
    Thread
    Size
    Thread
    Lg.
    Overall
    Lg.
    Thread
    Type
    Size
    Decimal Size
    Equiv.
    Shank
    Type
    Chamfer
    Type
    No. of
    Flutes
    Each
    Chamfer
    Type
    No. of
    Flutes
    Each
    Cobalt Steel
     
    Black Oxide
    2-56
    		1/4"1 3/4"UNC
    		51 Ga.
    		0.067"Square—————0Plug20000000000000
    4-40
    		13/32"2 3/16"UNC
    		43 Ga.
    		0.089"SquarePlug20000000000000Plug2000000000000
    5-40
    		13/32"2 3/16"UNC
    		38 Ga.
    		0.1015"SquarePlug2000000000000Plug2000000000000
    6-32
    		15/32"2 3/16"UNC
    		36 Ga.
    		0.1065"SquarePlug3000000000000Plug3000000000000
    6-40
    		15/32"2 3/16"UNF
    		33 Ga.
    		0.113"Square—————0Plug3000000000000
    8-32
    		1/2"2 15/32"UNC
    		29 Ga.
    		0.136"SquarePlug3000000000000Plug3000000000000
    8-36
    		1/2"2 15/32"UNF
    		29 Ga.
    		0.136"Square—————0Plug3000000000000
    10-24
    		19/32"2 3/4"UNC
    		25 Ga.
    		0.1495"SquarePlug3000000000000Plug3000000000000
    10-32
    		19/32"2 3/4"UNF
    		21 Ga.
    		0.159"SquarePlug3000000000000Plug3000000000000
    12-28
    		5/8"3 5/32"UNF
    		15 Ga.
    		0.18"Square—————0Plug3000000000000
    1/4"-20
    		21/32"3 5/32"UNC
    		7 Ga.
    		0.201"SquarePlug3000000000000Plug3000000000000
    1/4"-28
    		21/32"3 5/32"UNF
    		3 Ga.
    		0.213"SquarePlug3000000000000Plug3000000000000
    5/16"-18
    		25/32"3 17/32"UNC
    		F
    		0.257"SquarePlug3000000000000Plug3000000000000
    5/16"-24
    		25/32"3 17/32"UNF
    		I
    		0.272"SquarePlug3000000000000Plug3000000000000
    3/8"-16
    		27/32"3 15/16"UNC
    		5/16"
    		0.3125"SquarePlug3000000000000Plug3000000000000
    3/8"-24
    		27/32"3 15/16"UNF
    		Q
    		0.332"SquarePlug3000000000000Plug3000000000000
    7/16"-14
    		27/32"3 15/16"UNC
    		U
    		0.368"SquarePlug3000000000000Plug3000000000000
    7/16"-20
    		27/32"3 15/16"UNF
    		25/64"
    		0.3906"SquarePlug3000000000000Plug3000000000000
    1/2"-13
    		31/32"4 5/16"UNC
    		27/64"
    		0.4219"SquarePlug3000000000000Plug3000000000000
    1/2"-20
    		27/32"3 15/16"UNF
    		29/64"
    		0.4531"SquarePlug30000000000000Plug30000000000000
    5/8"-11
    		11/16"4 5/16"UNC
    		17/32"
    		0.5313"SquarePlug30000000000000—————0
    5/8"-18
    		27/32"3 15/16"UNF
    		37/64"
    		0.5781"SquarePlug30000000000000—————0
    3/4"-10
    		13/16"4 29/32"UNC
    		21/32"
    		0.6563"SquarePlug30000000000000—————0
    3/4"-16
    		31/32"4 5/16"UNF
    		11/16"
    		0.6875"SquarePlug40000000000000—————0
     

    Chip-Clearing Taps for Nickel

    Image of ProductInUse. Front orientation. Contains Annotated. Taps. Chip-Clearing Taps for Nickel, Spiral Flute for Through Holes.

    Spiral Flute for Through Holes

    Image of ProductInUse. Front orientation. Contains Annotated. Taps. Chip-Clearing Taps for Nickel, Spiral Flute for Blind Holes.

    Spiral Flute for Blind Holes

    Avoid heat buildup that can deform material and prematurely wear taps when threading nickel alloys. The body on these taps narrows closer to the flutes for better coolant flow and less contact with the workpiece. Spiral flutes prevent stuck chips that can slow you down and decrease the quality of the threads.
    Cobalt Steel—Tough and wear resistant, cobalt taps last twice as long as high-speed steel. They also can run at higher temperatures without damage to their cutting edges.
    Black Oxide—The dark finish increases wear resistance and reduces friction to improve chip flow, so these taps can last 50% longer than uncoated taps.
    Spiral Flute for Through Holes—Left-hand flutes push chips ahead of the tap and out of through holes.
    Spiral Flute for Blind Holes—Pull chips back toward the tap so they won't build up in blind holes.
    Plug Chamfer—Our go-to chamfer type. With a longer taper than a bottoming chamfer, they are easier to turn but won't thread as close the bottom of a hole.
    Drill Bit
    Spiral Flute for
    Through Holes
    Spiral Flute for Blind Holes
    Thread Size
    Thread
    Lg.
    Overall
    Lg.
    Thread
    Type
    Size
    Decimal Size
    Equiv.
    Shank
    Type
    Chamfer
    Type
    No. of
    Flutes
    Each
    Chamfer
    Type
    No. of
    Flutes
    Each
    Cobalt Steel
     
    Black Oxide
    2-56
    		7/16"1 3/4"UNC
    		51 Ga.
    		0.067"SquarePlug200000000000000Plug300000000000000
    4-40
    		9/16"1 7/8"UNC
    		43 Ga.
    		0.089"Square—————0Plug3000000000000
    4-40
    		9/16"1.88"UNC
    		43 Ga.
    		0.089"SquarePlug20000000000000—————0
    4-48
    		9/16"1 7/8"UNF
    		42 Ga.
    		0.0935"SquarePlug20000000000000Plug3000000000000
    5-40
    		3/8"1 15/16"UNC
    		38 Ga.
    		0.1015"SquarePlug30000000000000—————0
    5-40
    		5/8"1 15/16"UNC
    		38 Ga.
    		0.1015"Square—————0Plug3000000000000
    5-40
    		5/8"1.95"UNC
    		38 Ga.
    		0.1015"Square—————0Plug30000000000000
    6-32
    		3/8"2"UNC
    		36 Ga.
    		0.1065"SquarePlug30000000000000Plug3000000000000
    6-40
    		3/8"2"UNF
    		33 Ga.
    		0.113"SquarePlug30000000000000—————0
    6-40
    		13/32"2"UNF
    		33 Ga.
    		0.113"Square—————0Plug3000000000000
    8-32
    		5/16"2 1/8"UNC
    		29 Ga.
    		0.136"SquarePlug30000000000000Plug3000000000000
    8-36
    		3/8"2 1/8"UNF
    		29 Ga.
    		0.136"SquarePlug30000000000000—————0
    10-24
    		15/32"2 3/8"UNC
    		25 Ga.
    		0.1495"SquarePlug30000000000000Plug3000000000000
    10-32
    		15/32"2 3/8"UNF
    		21 Ga.
    		0.159"SquarePlug30000000000000Plug3000000000000
    12-24
    		7/16"2 3/8"UNC
    		16 Ga.
    		0.177"Square—————0Plug3000000000000
    12-24
    		1/2"2 3/8"UNC
    		16 Ga.
    		0.177"SquarePlug30000000000000—————0
    12-28
    		7/16"2 3/8"UNF
    		15 Ga.
    		0.18"Square—————0Plug3000000000000
    1/4"-20
    		7/16"2 1/2"UNC
    		7 Ga.
    		0.201"SquarePlug30000000000000Plug3000000000000
    1/4"-28
    		7/16"2 1/2"UNF
    		3 Ga.
    		0.213"SquarePlug30000000000000Plug3000000000000
    5/16"-18
    		1/2"2 23/32"UNC
    		F
    		0.257"SquarePlug30000000000000Plug3000000000000
    5/16"-24
    		1/2"2 23/32"UNF
    		I
    		0.272"SquarePlug30000000000000Plug3000000000000
    3/8"-16
    		19/32"2 15/16"UNC
    		5/16"
    		0.3125"SquarePlug30000000000000Plug3000000000000
    3/8"-24
    		19/32"2 15/16"UNF
    		Q
    		0.332"SquarePlug30000000000000Plug3000000000000
    7/16"-14
    		23/32"3 5/32"UNC
    		U
    		0.368"SquarePlug30000000000000Plug3000000000000
    7/16"-20
    		23/32"3 5/32"UNF
    		25/64"
    		0.3906"SquarePlug30000000000000Plug3000000000000
    1/2"-13
    		25/32"3 3/8"UNC
    		27/64"
    		0.4219"SquarePlug30000000000000Plug3000000000000
    1/2"-20
    		25/32"3 3/8"UNF
    		29/64"
    		0.4531"SquarePlug30000000000000Plug3000000000000
    9/16"-12
    		27/32"3 19/32"UNC
    		31/64"
    		0.4844"SquarePlug30000000000000—————0
    9/16"-18
    		27/32"3 19/32"UNF
    		33/64"
    		0.5156"SquarePlug40000000000000—————0
    5/8"-11
    		29/32"3 13/16"UNC
    		17/32"
    		0.5313"SquarePlug30000000000000Plug30000000000000
    5/8"-18
    		29/32"3 13/16"UNF
    		37/64"
    		0.5781"SquarePlug300000000000000—————0
    5/8"-18
    		1 5/16"3 13/16"UNF
    		37/64"
    		0.5781"Square—————0Plug30000000000000
    3/4"-10
    		1"4 1/4"UNC
    		21/32"
    		0.6563"SquarePlug300000000000000—————0
    3/4"-10
    		1 19/32"4 1/4"UNC
    		21/32"
    		0.6563"Square—————0Plug30000000000000
    3/4"-16
    		1"4 1/4"UNF
    		11/16"
    		0.6875"SquarePlug300000000000000Plug30000000000000
    M2.5 × 0.45 mm1/2"1.81"Metric
    		5/64"
    		0.0781"SquarePlug20000000000000Plug30000000000000
    M3 × 0.5 mm5/8"1 15/16"Metric
    		2.5 mm0.0984"SquarePlug3000000000000Plug3000000000000
    M3.5 × 0.6 mm3/8"2"Metric
    		2.9 mm0.1142"SquarePlug3000000000000Plug3000000000000
    M4 × 0.7 mm5/16"2 1/8"Metric
    		3.3 mm
    		0.1299"SquarePlug3000000000000Plug3000000000000
    M5 × 0.8 mm15/32"2 3/8"Metric
    		4.2 mm
    		0.1653"SquarePlug3000000000000Plug3000000000000
    M6 × 1 mm15/32"2 1/2"Metric
    		5 mm0.1968"SquarePlug3000000000000Plug3000000000000
    M7 × 1 mm17/32"2 23/32"Metric
    		6 mm0.2362"SquarePlug3000000000000Plug3000000000000
    M8 × 1 mm15/32"2 23/32"Metric
    		6.9 mm
    		0.2716"SquarePlug3000000000000Plug3000000000000
    M8 × 1.25 mm15/32"2 23/32"Metric
    		6.7 mm
    		0.2637"SquarePlug3000000000000Plug3000000000000
    M10 × 1.25 mm17/32"2 15/16"Metric
    		8.7 mm
    		0.3425"SquarePlug3000000000000Plug3000000000000
    M10 × 1.5 mm17/32"2 15/16"Metric
    		8.5 mm
    		0.3346"SquarePlug3000000000000Plug3000000000000
    M12 × 1.25 mm25/32"3 3/8"Metric
    		10.8 mm
    		0.4251"SquarePlug3000000000000Plug3000000000000
    M12 × 1.75 mm25/32"3 3/8"Metric
    		10.2 mm
    		0.4015"SquarePlug3000000000000Plug3000000000000
    M14 × 1.5 mm27/32"3 19/32"Metric
    		12.5 mm
    		0.4921"SquarePlug3000000000000—————0
    M14 × 2 mm27/32"3 19/32"Metric
    		12 mm0.4724"SquarePlug3000000000000—————0
    M16 × 1.5 mm29/32"3 13/16"Metric
    		14.5 mm
    		0.5709"SquarePlug30000000000000—————0
    M16 × 2 mm29/32"3 13/16"Metric
    		14 mm0.5512"SquarePlug3000000000000—————0
     

    Long-Reach Chip-Clearing Taps

    Image of ProductInUse. Front orientation. Taps. Long-Reach Chip-Clearing Taps.
    Push out chips while threading holes that are hard to reach or obstructed. These taps are double the length of standard taps to reach inside machines or through assemblies such as pulleys and belts. The flute design prevents buildup to protect the quality of the threads and avoid damage to the tap. Since you don’t need to reverse these taps to extract chips, they also create threads faster.
    Cobalt Steel—These taps resist higher temperatures and and last twice as long as high-speed steel taps. They thread hard materials such as iron and hardened steel without damaging their cutting edges.
    Black Oxide—The dark finish increases wear resistance and reduces friction to improve chip flow, so these taps can last 50% longer than uncoated taps.
    Spiral-Point Flute for Through Holes—Push chips ahead of the tap and out of through holes. Also known as gun taps.
    Plug Chamfer—Our go-to chamfer type. With a longer taper than a bottoming chamfer, they are easier to turn but won't thread as close the bottom of a hole.
    Drill Bit
    Shank
    Spiral-Point Flute
    for Through Holes
    Thread
    Size
    Thread
    Lg.
    Overall
    Lg.
    Thread
    Type
    Size
    Decimal Size
    Equiv.
    Type
    Dia.
    Chamfer
    Type
    No. of
    Flutes
    Each
    Cobalt Steel
     
    Black Oxide
    2-56
    		7/16"6"UNC
    		51 Ga.
    		0.067"Square0.141"Plug200000000000000
    4-40
    		5/16"6"UNC
    		43 Ga.
    		0.089"Square0.141"Plug2000000000000
    6-32
    		3/8"6"UNC
    		36 Ga.
    		0.1065"Square0.141"Plug2000000000000
    8-32
    		3/8"6"UNC
    		29 Ga.
    		0.136"Square0.168"Plug2000000000000
    10-24
    		1/2"6"UNC
    		25 Ga.
    		0.1495"Square0.194"Plug2000000000000
    10-32
    		1/2"6"UNF
    		21 Ga.
    		0.159"Square0.194"Plug2000000000000
    1/4"-20
    		5/8"6"UNC
    		7 Ga.
    		0.201"Square0.255"Plug3000000000000
    1/4"-28
    		5/8"6"UNF
    		3 Ga.
    		0.213"Square0.255"Plug3000000000000
    5/16"-18
    		11/16"6"UNC
    		F
    		0.257"Square0.318"Plug3000000000000
    5/16"-24
    		11/16"6"UNF
    		I
    		0.272"Square0.318"Plug3000000000000
    3/8"-16
    		3/4"6"UNC
    		5/16"
    		0.3125"Square0.381"Plug3000000000000
    3/8"-24
    		3/4"6"UNF
    		Q
    		0.332"Square0.381"Plug3000000000000
    7/16"-14
    		7/8"6"UNC
    		U
    		0.368"Square0.323"Plug3000000000000
    7/16"-20
    		7/8"6"UNF
    		25/64"
    		0.3906"Square0.323"Plug3000000000000
    1/2"-13
    		15/16"6"UNC
    		27/64"
    		0.4219"Square0.367"Plug3000000000000
    1/2"-20
    		15/16"6"UNF
    		29/64"
    		0.4531"Square0.367"Plug3000000000000
    5/8"-11
    		1 3/32"6"UNC
    		17/32"
    		0.5313"Square0.48"Plug30000000000000
     

    Pipe and Conduit Taps

    Add internal threads to pipe and conduit or components such as manifolds. They have straight flutes that are good for most jobs.
    NPT ThreadAbout NPT Thread
    Image of Product. Front orientation. Taps. Pipe and Conduit Taps.
    Cobalt Steel—These taps resist higher temperatures and and last twice as long as high-speed steel taps. They thread hard materials such as iron and hardened steel without damaging their cutting edges.
    Drill Bit
    Plug Chamfer
    Pipe
    Size
    Thread
    Lg.
    Overall
    Lg.
    No. of
    Flutes
    Threads
    per In.
    Size
    Decimal Size
    Equiv.
    Shank
    Type
    Each
    Cobalt Steel
     
    Uncoated
    1/8
    		3/4"2 1/8"427Q
    		0.332"Square0000000000000
    1/4
    		1 1/16"2 7/16"4187/16"
    		0.4375"Square000000000000
    3/8
    		1 1/16"2 9/16"4189/16"
    		0.5625"Square000000000000
    1/2
    		1 3/8"3 1/8"41445/64"
    		0.7031"Square0000000000000
    3/4
    		1 3/8"3 1/4"51429/32"
    		0.9063"Square0000000000000
     

    Chip-Clearing Pipe and Conduit Taps for Steel and Stainless Steel

    Made of a high-vanadium alloy, these taps are harder and more wear-resistant than other high-speed steel taps. The widely spaced flutes prevent buildup that can ruin threads and keep pipe and conduit from making strong connections. Also known as interrupted-thread taps.
    NPT ThreadAbout NPT Thread
    Image of Product. Front orientation. Taps. Chip-Clearing Pipe and Conduit Taps for Steel and Stainless Steel.
    Drill Bit
    Plug Chamfer
    Pipe
    Size
    Thread
    Lg.
    Overall
    Lg.
    No. of
    Flutes
    Threads
    per In.
    Size
    Decimal Size
    Equiv.
    Shank
    Type
    Each
    Cobalt Steel
     
    Titanium Nitride (TiN) Coated
    1/16
    		11/16"2 1/8"427C
    		0.242"Square0000000000000
    1/8
    		3/4"2 1/8"427Q
    		0.332"Square000000000000
    1/4
    		1 1/16"2 7/16"4187/16"
    		0.4375"Square000000000000
    3/8
    		1 1/16"2 9/16"4189/16"
    		0.5625"Square000000000000
    1/2
    		1 3/8"3 1/8"41445/64"
    		0.7031"Square0000000000000
    3/4
    		1 3/8"3 1/4"41429/32"
    		0.9063"Square0000000000000
    1
    		1 3/4"3 3/4"411 1/21 9/64"
    		1.1406"Square0000000000000
     
    NPTF ThreadAbout NPTF Thread
    Image of Product. Front orientation. Taps. Chip-Clearing Pipe and Conduit Taps for Steel and Stainless Steel.
    Drill Bit
    Plug Chamfer
    Pipe
    Size
    Thread
    Lg.
    Overall
    Lg.
    No. of
    Flutes
    Threads
    per In.
    Size
    Decimal Size
    Equiv.
    Shank
    Type
    Each
    Cobalt Steel
     
    Titanium Nitride (TiN) Coated
    1/8
    		3/4"2 1/8"427Q
    		0.332"Square0000000000000
    1/4
    		1 1/16"2 7/16"4187/16"
    		0.4375"Square000000000000
    3/8
    		1 1/16"2 9/16"4189/16"
    		0.5625"Square000000000000
    3/4
    		1 3/8"3 1/4"41429/32"
    		0.9063"Square0000000000000
     
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