Standard Specifications

National Standard (ISO) Metric Tap

Straight Flute Machine Tap with Thick Shank

Straight FLUTE TAPS

Features

The thread conforms to GB/T3464.1-2007 eqv ISO529-1993.

Straight FLUTE TAPS

Specifications

(unit: mm)

Thread Size	TYPE	Pitch	L Overall length	l Thread Length	l1 Cutting Length	ln Length to neck	d₀ Shank diameter	K Square size	FLUTES
M3	1	0.35/0.5	48	11	4.5P	16.5	3.15	2.5	3
M3.5	1	0.35/0.6	50	13	4.5P	18.5	3.55	2.8	3
M4	1	0.5/0.7	53	13	4.5P	19.5	4	3.15	3
M4.5	1	0.5/0.75	53	13	4.5P	19.5	4.5	3.55	3
M5	1	0.5/0.8	58	16	4.5P	23.5	5	4	3
M5.5	1	0.5	62	17	4.5P	23.5	5.6	4.5	3
M6	1	0.5/0.75/1.0	66	19	4.5P	29	6.3	5	3
M7	2	0.75/1.0	66	19	4.5P	30	7.1	5.6	3
M8	2	0.5/0.75	66	19	4.5P	32	8	6.3	3
M8	2	1.0/1.25	72	22	4.5P	35	8	6.3	3
M9	2	0.75	66	19	4.5P	33	9	7.1	3/4
M9	2	1.0/1.25	72	22	4.5P	36	9	7.1	3/4
M10	2	0.75	73	20	4.5P	35	10	8	3/4
M10	2	1.0/1.25/1.5	80	24	4.5P	39	10	8	3/4

National Standard (ISO) Metric Tap

Straight Flute Machine Tap with Thin Shank

Straight FLUTE TAPS

Features

The thread conforms to GB/T3464.1-2007 eqv ISO529-1993.

Straight FLUTE TAPS

Specifications

(unit: mm)

Thread Size	Pitch	L Overall length	l Thread Length	l1 Cutting Length	d₀ Shank diameter	K Square size	FLUTES
M7	0.75/1.0	66	19	4.5P	5.6	4.5	3
M8	0.75	66	19	4.5P	6.3	5.0	3
M8	1.0/1.25	72	22	4.5P	6.3	5.0	3
M9	0.75	66	19	4.5P	7.1	5.6	3/4
M9	1.0/1.25	72	22	4.5P	7.1	5.6	3/4
M10	0.75	73	20	4.5P	8.0	6.3	3/4
M10	1.0/1.25/1.5	80	24	4.5P	8.0	6.3	3/4
M11	0.75/1.0	80	22	4.5P	8.0	6.3	4
M11	1.5	85	25	4.5P	8.0	6.3	4
M12	1.0	80	22	4.5P	9.0	7.1	4
M12	1.25/1.5/1.75	89	29	4.5P	9.0	7.1	4
M14	1.0	87	22	4.5P	11.2	9.0	4
M14	1.25/1.5/2.0	95	30	4.5P	11.2	9.0	4
M15	1.5	95	30	4.5P	11.2	9.0	4
M16	1.0	92	22	4.5P	12.5	10.0	4
M16	1.5/2.0	102	32	4.5P	12.5	10.0	4
M17	1.5	102	32	4.5P	12.5	10.0	4
M18	1.0	97	22	4.5P	14.0	11.2	4
M18	1.5/2.0/2.5	112	37	4.5P	14.0	11.2	4
M20	1.0	102	22	4.5P	14.0	11.2	4
M20	1.5/2.0/2.5	112	37	4.5P	14.0	11.2	4
M22	1.0	109	24	4.5P	16.0	12.5	4
M22	1.5/2.0/2.5	118	38	4.5P	16.0	12.5	4
M24	1.0	114	24	4.5P	18.0	14.0	4
M24	1.5/2.0/3.0	130	45	4.5P	18.0	14.0	4
M27	2.0/3.0	135	45	4.5P	20.0	16.0	4
M30	3.5	138	48	4.5P	20.0	16.0	4
M33	3.0/3.5	151	50	4.5P	22.4	18.0	6
M36	4.0	162	56	4.5P	25.0	20.0	6
M39	3.0/4.0	170	59	4.5P	28.0	22.4	6
M42	4.5	170	59	4.5P	28.0	22.4	6
M45	4.5	187	66	4.5P	31.5	25.0	6
M48	5.0	187	67	4.5P	31.5	25.0	6

National Standard (ISO) Metric Tap

Spiral Flute Machine Tap with Thick Shank

SPIRAL FLUTE TAPS

Features

The thread standard conforms to GB/T3506-2008.

SPIRAL FLUTE TAPS

Specifications

(unit: mm)

Thread Size	TYPE	Pitch	L Overall length	l Thread Length	l1 Cutting Length	ln Length to neck	d₀ Shank diameter	K Square size	FLUTES
M3	1	0.35/0.5	48	11	2.5P	16.5	3.15	2.5	3
M3.5	1	0.35/0.6	50	13	2.5P	18.5	3.55	2.8	3
M4	1	0.5/0.7	53	13	2.5P	19.5	4.0	3.15	3
M4.5	1	0.5/0.75	53	13	2.5P	19.5	4.5	3.55	3
M5	1	0.5/0.8	58	16	2.5P	23.5	5.0	4.0	3
M5.5	1	0.5	62	17	2.5P	23.5	5.6	4.5	3
M6	1	0.5/0.75/1.0	66	19	2.5P	29	6.3	5.0	3
M7	2	0.75/1.0	66	19	2.5P	30	7.1	5.6	3
M8	2	0.5/0.75	66	19	2.5P	32	8.0	6.3	3
M8	2	1.0/1.25	72	22	2.5P	35	8.0	6.3	3
M9	2	0.75	66	19	2.5P	33	9.0	7.1	3
M9	2	1.0/1.25	72	22	2.5P	36	9.0	7.1	3
M10	2	0.75	73	20	2.5P	35	10.0	8.0	3
M10	2	1.0/1.25/1.5	80	24	2.5P	39	10.0	8.0	3

National Standard (ISO) Metric Tap

Spiral Flute Machine Tap with Thin Shank

SPIRAL FLUTE TAPS

Features

The thread standard conforms to GB/T3506-2008.

SPIRAL FLUTE TAPS

Specifications

(unit: mm)

Thread Size	Pitch	L Overall length	l Thread Length	l1 Cutting Length	d₀ Shank diameter	K Square size	FLUTES
M7	0.75/1.0	66	19	2.5P	5.6	4.5	3
M8	1.0/1.25	72	22	2.5P	6.3	5.0	3
M9	1.0/1.25	72	22	2.5P	7.1	5.6	3
M10	1.0/1.25/1.5	80	24	2.5P	8.0	6.3	3
M11	1.5	85	25	2.5P	8.0	6.3	3
M12	1.25/1.5/1.75	89	29	2.5P	9.0	7.1	3
M14	1.25/1.5/2.0	95	30	2.5P	11.2	9.0	3/4
M15	1.5	95	30	2.5P	11.2	9.0	3/4
M16	1.5/2.0	102	32	2.5P	12.5	10.0	3/4
M17	1.5	102	32	2.5P	12.5	10.0	4
M18	1.5/2.0/2.5	112	37	2.5P	14.0	11.2	4
M20	1.5/2.0/2.5	112	37	2.5P	14.0	11.2	4
M22	1.5/2.0/2.5	118	38	2.5P	16.0	12.5	4
M24	1.5/2.0/3.0	130	45	2.5P	18.0	14.0	4

National Standard (ISO) Metric Tap

Spiral Flute Machine Tap with Thick Shank (Short Thread)

SPIRAL FLUTE TAPS

Features

The thread standard conforms to GB/T3506-2008.

SPIRAL FLUTE TAPS

Specifications

(unit: mm)

Thread Size	TYPE	Pitch	L Overall length	l Thread Length	l1 Cutting Length	ln Length to neck	d₀ Shank diameter	K Square size	FLUTES
M3	1	0.35/0.5	48	6	2.5P	16.5	3.15	2.5	3
M4	1	0.5/0.7	53	8	2.5P	19.5	4.0	3.15	3
M5	1	0.5/0.8	58	9	2.5P	23.5	5.0	4.0	3
M6	1	0.5/0.75/1.0	66	11	2.5P	29	6.3	5.0	3
M7	2	0.75/1.0	66	11	2.5P	30	7.1	5.6	3
M8	2	1.0/1.25	72	13	2.5P	35	8.0	6.3	3
M10	2	1.0/1.25/1.5	80	16	2.5P	39	10.0	8.0	3

National Standard (ISO) Metric Tap

Spiral Flute Machine Tap with Thin Shank (Short Thread)

SPIRAL FLUTE TAPS

Features

The thread standard conforms to GB/T3506-2008.

SPIRAL FLUTE TAPS

Specifications

(unit: mm)

Thread Size	Pitch	L Overall length	l Thread Length	l1 Cutting Length	d₀ Shank diameter	K Square size	FLUTES
M7	0.75/1.0	66	11	2.5P	5.6	4.5	3
M8	0.75/1.0/1.25	72	13	2.5P	6.3	5.0	3
M10	0.75/1.0/1.25/1.5	80	16	2.5P	8.0	6.3	3
M12	1.0/1.25/1.5/1.75	89	18	2.5P	9.0	7.1	3
M14	1.0/1.25/1.5/2.0	95	21	2.5P	11.2	9.0	3/4
M16	1.0/1.5/2.0	102	21	2.5P	12.5	10.0	3/4
M18	1.0/1.5/2.0/2.5	112	26	2.5P	14.0	11.2	4
M20	1.0/1.5/2.0/2.5	112	26	2.5P	14.0	11.2	4
M22	1.0/1.5/2.0/2.5	118	26	2.5P	16.0	12.5	4
M24	1.0/1.5/2.0/3.0	130	31	2.5P	18.0	14.0	4

National Standard (ISO) Metric Tap

Spiral Point Machine Tap with Thick Shank

Spiral Point Taps

Features

The thread standard conforms to GB/T 28254-2012.

Spiral Point Taps

Specifications

(unit: mm)

Thread Size	TYPE	Pitch	L Overall length	l Thread Length	l1 Cutting Length	ln Length to neck	d₀ Shank diameter	K Square size	FLUTES
M3	1	0.35/0.5	48	11	5.5P	16.5	3.15	2.5	3
M3.5	1	0.35/0.6	50	13	5.5P	18.5	3.55	2.8	3
M4	1	0.5/0.7	53	13	5.5P	19.5	4.0	3.15	3
M4.5	1	0.5/0.75	53	13	5.5P	19.5	4.5	3.55	3
M5	1	0.5/0.8	58	16	5.5P	23.5	5.0	4.0	3
M5.5	1	0.5	62	17	5.5P	23.5	5.6	4.5	3
M6	1	0.5/0.75/1.0	66	19	5.5P	29	6.3	5.0	3
M7	2	0.75/1.0	66	19	5.5P	30	7.1	5.6	3
M8	2	0.5/0.75	66	19	5.5P	32	8.0	6.3	3
M8	2	1.0/1.25	72	22	5.5P	35	8.0	6.3	3
M9	2	0.75	66	19	5.5P	33	9.0	7.1	3
M9	2	1.0/1.25	72	22	5.5P	36	9.0	7.1	3
M10	2	0.75	73	20	5.5P	35	10.0	8.0	3
M10	2	1.0/1.25/1.5	80	24	5.5P	39	10.0	8.0	3

National Standard (ISO) Metric Tap

Thread Spiral Point Machine Tap with Thin Shank

Spiral Point Taps

Features

The thread standard conforms to GB/T28254-2012.

Spiral Point Taps

Specifications

(unit: mm)

Thread Size	Pitch	L Overall length	l Thread Length	l1 Cutting Length	d₀ Shank diameter	K Square size	FLUTES
M7	0.75/1.0	66	19	5.5P	5.6	4.5	3
M8	0.75	66	19	5.5P	6.3	5.0	3
M8	1.0/1.25	72	22	5.5P	6.3	5.0	3
M9	0.75	66	19	5.5P	7.1	5.6	3
M9	1.0/1.25	72	22	5.5P	7.1	5.6	3
M10	0.75	73	20	5.5P	8.0	6.3	3
M10	1.0/1.25/1.5	80	24	5.5P	8.0	6.3	3
M11	0.75/1.0	80	22	5.5P	8.0	6.3	3
M11	1.5	85	25	5.5P	8.0	6.3	3
M12	1.0	80	22	5.5P	9.0	7.1	3
M12	1.25/1.5/1.75	89	29	5.5P	9.0	7.1	3
M14	1.0	87	22	5.5P	11.2	9.0	4
M14	1.25/1.5/2.0	95	30	5.5P	11.2	9.0	4
M16	1.0	92	22	5.5P	12.5	10.0	4
M16	1.5/2.0	102	32	5.5P	12.5	10.0	4
M18	1.0	97	22	5.5P	14.0	11.2	4
M18	1.5/2.0/2.5	112	37	5.5P	14.0	11.2	4
M20	1.0	102	22	5.5P	14.0	11.2	4
M20	1.5/2.0/2.5	112	37	5.5P	14.0	11.2	4
M22	1.5/2.0/2.5	118	38	5.5P	16.0	12.5	4
M24	1.5/2.0/3.0	130	45	5.5P	18.0	14.0	4

National Standard (ISO) Metric Tap

Metric Thread Extruding Tap with Thick Shank

Extruding FLUTE TAPS

Features

The thread standard conforms to GB/T28253-2012.

Extruding FLUTE TAPS

Specifications

(unit: mm)

Thread Size	TYPE	Pitch	L Overall length	l Thread Length	l1 Cutting Length	ln Length to neck	d₀ Shank diameter	K Square size	FLUTES
M3	1	0.35/0.5	48	11	4P	16.5	3.15	2.5	4
M3.5	1	0.35/0.6	50	13	4P	18.5	3.55	2.8	4
M4	1	0.5/0.7	53	13	4P	19.5	4.0	3.15	4
M4.5	1	0.5/0.75	53	13	4P	19.5	4.5	3.55	4
M5	1	0.5/0.8	58	16	4P	23.5	5.0	4.0	4
M5.5	1	0.5	62	17	4P	23.5	5.6	4.5	4
M6	1	0.5/0.75/1.0	66	19	4P	29	6.3	5.0	4
M7	2	0.75/1.0	66	19	4P	30	7.1	5.6	4
M8	2	0.5/0.75	66	19	4P	32	8.0	6.3	4
M8	2	1.0/1.25	72	22	4P	35	8.0	6.3	4
M9	2	0.75	66	19	4P	33	9.0	7.1	4
M9	2	1.0/1.25	72	22	4P	36	9.0	7.1	4
M10	2	0.75	73	20	4P	35	10.0	8.0	4
M10	2	1.0/1.25/1.5	80	24	4P	39	10.0	8.0	4

National Standard (ISO) Metric Tap

Metric Thread Extruding Tap with Thin Shank

Extruding FLUTE TAPS

Features

The thread standard conforms to GB/T28253-2012.

Extruding FLUTE TAPS

Specifications

(unit: mm)

Thread Size	Pitch	L Overall length	l Thread Length	l1 Cutting Length	d₀ Shank diameter	K Square size	FLUTES
M7	0.75/1	66	19	4P	5.6	4.5	4
M8	0.5/0.75/1/1.25	72	22	4P	6.3	5	4
M9	0.75/1/1.25	72	22	4P	7.1	5.6	4
M10	0.75/1/1.25/1.5	80	24	4P	8	6.3	4
M11	0.75/1/1.5	85	25	4P	8	6.3	4
M12	1/1.25/1.5/1.75	89	29	4P	9	7.1	4
M14	1/1.25/1.5/2	95	30	4P	11.2	9	6
M16	1/1.5/2	102	32	4P	12.5	10	8
M18	1/1.5/2/2.5	112	37	4P	14	11.2	8
M20	1/1.5/2/2.5	112	37	4P	14	11.2	8
M22	1/1.5/2/2.5	118	38	4P	16	12.5	8
M24	1/1.5/2/3	130	45	4P	18	14	8

National Standard (ISO) Metric Tap

Special Metric Tap

Special FLUTE TAPS

Features

Design according to the old standard. The thread standard conforms to GB/T192, 193, 196, 197.

Special FLUTE TAPS

Specifications

(unit: mm)

Thread Size	Pitch	L Overall length	l Thread Length	l1 Cutting Length	d₀ Shank diameter	K Square size	FLUTES
M16	1.5	80	28	2P	12.5	10.0	4
M18	1.5	90	32	2P	14	11	4
M20	1.5	90	32	2P	16	12	4
M25	1.5	95	32	2P	20	16	4
M30	1.5	105	36	2P	24	18	4
M32	1.5	115	40	2P	26	20	4