E7121/4

HSS Straight Flute Hand Tap, NPTF, ANSI Standard
Ordering number: 5977685

Straight flute tap with chamfer form C with a 2-3xP plug lead, for (Dryseal) National Pipe Taper thread for Fuel lines NPTF 1/4" with 18 TPI and Normal class of fit, dimensions according to ~ANSI B94.9 standard with 14.3mm shank and 10.7mm square drive, HSS with bright finish for 1.5xD through or blind hole threading in free machining and plain carbon steel and copper or copper alloys

info

If you want to see the prices or stock information, please sign in or request access.

Contact Sales

location_on

Find a Distributor

Product Feature

Bright (uncoated)

Thread Form, American National Pipe Taper Fuel (Dryseal)

ANSI B94.9 – Tap Standard

Normal Fit Class for Pipe Thread

Through or Blind Hole Application

1.5×D Usable Tool Depth to Diameter Ratio

High Speed Steel Tool Material

Semi-Bottoming Tap Chamfer (2 – 3 Pitch Lead)

Straight Flute Geometry

Right Hand Rotation / Cutting

Product Detail

Description	Value
Product name	E7121/4
EDP number	0100028
EAN number	7320760100028
Thread diameter size (TDZ)	1/4
Thread diameter - millimeter (TD)	13.72 mm
Threads per inch (TPI)	18
Overall length - millimeter (OAL)	75 mm
Overall length - inch (OAL)	2.9528 inch
Threading length - millimeter (THL)	27 mm
Threading length - inch (THL)	1.063 inch
Connection diameter - inch (DCON MS)	0.563 inch
Connection diameter - millimeter (DCON MS)	14.3 mm
Flute count (NOF)	4
Tap chamfer length - millimeter (TCL)	17.6 mm
Clamping width - inch (WSC)	0.4213 inch
Clamping width - millimeter (WSC)	10.7 mm
Clamping Length - inch (LCS)	0.4331 inch
Clamping Length - millimeter (LSC)	11 mm
Premachined hole diameter - inch (PHD)	0.4291 inch
Premachined hole diameter - millimeter (PHD)	10.9 mm
Gross weight - grams	71.3
ANSI	E7121/4
ISO	E7121/4
Ordering code ANSI	E7121/4

Cutting Conditions

P - Steel and cast steel (steels with alloy content ≤ 10% and a hardness of < 45HRC)

P1

P1 - Free machining steel (carbon steels with increased machinability)

navigate_next

	Suitability	v_c
P1.1 - Free machining sulfurized carbon steel with a hardness of < 240HB	help_outline Primary use	23 ft/min
P1.2 - Free machining sulfurized and phosphorized carbon steel with a hardness of < 180HB	help_outline Primary use	23 ft/min
P1.3 - Free machining sulfurized/phosphorized and leaded carbon steel with a hardness of < 180HB	help_outline Primary use	26 ft/min

P2

P2 - Plain carbon steel (steels comprised of mainly iron and carbon)

navigate_next

	Suitability	v_c
P2.1 - Plain low carbon steel containing < 0.25%C with a hardness of < 180HB	help_outline Primary use	20 ft/min
P2.2 - Plain medium carbon steel containing < 0.55%C with a hardness of < 240HB	help_outline Primary use	16 ft/min
P2.3 - Plain high carbon steel containing > 0.55%C, with a hardness of < 300HB	help_outline Possible use	13 ft/min

P3

P3 - Alloy steel (carbon steels with an alloying content ≤ 10%)

navigate_next

	Suitability	v_c	f
P3.1 - Alloy steel with a hardness of < 180HB	help_outline Primary use	13 ft/min
P3.2 - Alloy steel with a hardness of 180 - 260HB	help_outline Possible use	13 ft/min

P4

P4 - Tool steel (special alloy steel for tools, dies and molds)

navigate_next

	Suitability	v_c	f
P4.1 - Tool steel with a hardness of < 26HRC	help_outline Possible use	10 ft/min

K - Cast Iron (castings of iron and carbon alloys with > 2% carbon content)

K1

K1 - Gray iron (GG) (iron-carbon castings with a lamellar graphite microstructure)

navigate_next

	Suitability	v_c
K1.1 - Gray iron, ferritic or ferritic-pearlitic with a hardness of < 180HB	help_outline Possible use	20 ft/min
K1.2 - Gray iron, ferritic-pearlitic or pearlitic with a hardness of 180 - 240HB	help_outline Possible use	13 ft/min
K1.3 - Gray iron, pearlitic with a hardness of 240 - 280HB	help_outline Possible use	10 ft/min

K2

K2 - Malleable iron (GTS/GTW) (heat-treated iron-carbon castings with a graphite-free microstructure)

navigate_next

	Suitability	v_c	f
K2.1 - Malleable iron, ferritic with a hardness of < 160HB	help_outline Possible use	23 ft/min
K2.2 - Malleable iron, ferritic or pearlitic with a hardness of 160 - 200HB	help_outline Possible use	20 ft/min

K3

K3 - Ductile iron (GGG) (iron-carbon castings with a nodular graphite microsturcture)

navigate_next

	Suitability	v_c	f
K3.1 - Ductile (nodular/spheriodal) iron, ferritic with a hardness of < 180HB	help_outline Possible use	23 ft/min
K3.2 - Ductile (nodular/spheriodal) iron, ferritic or pearlitic with a hardness of 180 - 220HB	help_outline Possible use	16 ft/min

K4

K4 - Austenitic or austempered ductile iron (Ni-Resist/ADI) (iron-carbon alloy castings with an austenitic or ausferrite microstructure)

navigate_next

	Suitability	v_c	f
K4.1 - Austenitic cast iron with a hardness of < 180HB	help_outline Possible use	20 ft/min
K4.2 - Austenitic cast iron with a hardness of 180 - 240HB	help_outline Possible use	16 ft/min

K5

K5 - Compacted graphite iron (CGI) (iron-carbon castings with a vermicular graphite structure)

navigate_next

	Suitability	v_c	f
K5.1 - Vermicular, compacted graphite iron with a hardness of < 180HB	help_outline Possible use	23 ft/min
K5.2 - Vermicular, compacted graphite iron with a hardness of 180 - 220HB	help_outline Possible use	16 ft/min

N - Non-ferrous metals (metals including alloys without an appreciable amount of iron)

N1

N1 - Wrought aluminium

navigate_next

	Suitability	v_c	f
N1.3 - Wrought aluminium alloys with a hardness of 100 - 150HB	help_outline Possible use	26 ft/min

N2

N2 - Cast aluminium

navigate_next

	Suitability	v_c
N2.1 - Cast aluminium alloys with a hardness of < 75HB	help_outline Possible use	36 ft/min
N2.2 - Cast aluminium alloys with a hardness of 75 - 90HB	help_outline Possible use	33 ft/min
N2.3 - Cast aluminium alloys with a hardness of 90 < 140HB	help_outline Possible use	23 ft/min

N3

N3 - Copper or copper alloys

navigate_next

	Suitability	v_c
N3.1 - Free-cutting copper-alloys materials with excellent machining properties	help_outline Primary use	56 ft/min
N3.2 - Short-chip copper-alloys with good to moderate machining properties	help_outline Primary use	33 ft/min
N3.3 - Electrolytic copper and long-chip copper-alloys with moderate to poor machining properties	help_outline Possible use	16 ft/min

N4

N4 - Polymers(synthetic or semi-synthetic materials)

navigate_next

	Suitability	v_c	f
N4.2 - Thermosetting polymers	help_outline Possible use	16 ft/min
N4.3 - Reinforced polymers or composites	help_outline Possible use	10 ft/min

Related Parts

Used as replacement

Material application

Select

E7121/4

Product Feature

Product Detail

Cutting Conditions

P1

P2

P3

P4

K1

K2

K3

K4

K5

N1

N2

N3

N4

Related Parts

1543(NPTF)