IS 1364-2

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Explore Adfast Components for precision-engineered fasteners, offering hot & cold forged solutions with metric sizes from M3 to M100 for diverse industrial needs.

materials

Carbon Steel

Alloy Steel

Stainless Steel

Super Alloys

Non Ferrous Metal & Alloys

High Performance Nickel Alloys

Copper Alloys

Technical

Specification

Standard

Weight

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Threads
Contact

Home
About
Product
Product

Adfast Components offers precision-engineered hot and cold forged fasteners ranging from M3 to M100, ensuring superior strength and reliability. Designed to meet diverse industrial standards, our components guarantee durability and performance.

Precision Components

Pumps & Valves

Automobile

Customised

Electronic

Medical

Contract Manufacturing

3D Printing & Additive Manufacturing

Fastener

Bolts

Coated Fasteners

Washer

Stud Bolts

Nuts

Screws
Resources
Resources

Explore Adfast Components for precision-engineered fasteners, offering hot & cold forged solutions with metric sizes from M3 to M100 for diverse industrial needs.

materials

Carbon Steel

Alloy Steel

Stainless Steel

Super Alloys

Non Ferrous Metal & Alloys

High Performance Nickel Alloys

Copper Alloys

Technical

Specification

Standard

Weight

Applications

Threads
Contact

β = 15° to 30°
Point shall be chamfered or for threads ≤ M4 may be as-rolled (sheared end)
Incomplete thread u ≤ 2P
Raferee datum for d_w
ds ≈ pitch diameter

Dimensions of IS 1364-2 Hexagon Head Screws - Preferred Threads

Thread (d)					M 1.6	M 2	M 2.5	M 3	M 4	M 5	M 6	M 8	M 10
p^a					0.35	0.4	0.45	0.5	0.7	0.8	1	1.25	1.5
a				max^b	1.05	1.2	1.35	1.5	2.1	2.4	3	4	4.5
a				min	0.35	0.4	0.45	0.5	0.7	0.8	1	1.25	1.5
c				max	0.25	0.25	0.25	0.40	0.40	0.50	0.50	0.60	0.60
c				min	0.10	0.10	0.10	0.15	0.15	0.15	0.15	0.15	0.15
d_a max					2	2.6	3.1	3.6	4.7	5.7	6.8	9.2	11.2
d_w		Product Grade		A min	2.27	3.07	4.07	4.57	5.88	6.88	8.88	11.63	14.63
d_w		Product Grade		B min	2.3	2.95	3.95	4.45	5.74	6.74	8.74	11.47	14.47
e		Product Grade		A min	3.41	4.32	5.45	6.01	7.66	8.79	11.05	14.38	17.77
e		Product Grade		B min	3.28	4.18	5.31	5.88	7.50	8.63	10.89	14.20	17.59
k		nom.			1.1	1.4	1.7	2	2.8	3.5	4	5.3	6.4
		Product Grade		A max	1.225	1.525	1.825	2.125	2.925	3.65	4.15	5.45	6.58
		Product Grade		A min	0.975	1.275	1.575	1.875	2.675	3.35	3.85	5.15	6.22
		Product Grade		B max	1.3	1.6	1.9	2.2	3.0	3.74	4.24	5.54	6.69
		Product Grade		B min	0.9	1.2	1.5	1.8	2.6	3.26	3.76	5.06	6.11
kw^e		Product Grade		A min	0.68	0.89	1.10	1.31	1.87	2.35	2.70	3.61	4.35
kw^e		Product Grade		B min	0.63	0.84	1.05	1.26	1.82	2.28	2.63	3.54	4.28
r min					0.1	0.1	0.1	0.1	0.2	0.2	0.25	0.4	0.4
s		nom = max			3.20	4.00	5.00	5.50	7.00	8.00	10.00	13.00	16.00
		Product Grade		A min	3.02	3.82	4.82	5.32	6.78	7.78	9.78	12.73	15.73
		Product Grade		B min	2.90	3.70	4.70	5.20	6.64	7.64	9.64	12.57	15.57
Product grade
A			B
nom	min	max	min	max
2	1.8	2.2	–	–
3	2.8	3.2	–	–
4	3.76	4.24	–	–
5	4.76	5.24	–	–
6	5.76	6.24	–	–
8	7.71	8.29	–	–
10	9.71	10.29	–	–
12	11.65	12.35	–	–
16	15.65	16.35	–	–
20	19.58	20.42	18.95	21.05
25	24.58	25.42	23.95	26.05
30	29.58	30.42	28.95	31.05
35	34.5	35.5	33.75	36.25
40	39.5	40.5	38.75	41.25
45	44.5	45.5	43.75	46.25
50	49.5	50.5	48.75	51.25
55	54.4	55.6	53.5	56.25
60	59.4	60.6	58.5	61.50
65	64.4	65.6	63.5	66.50
70	69.4	70.6	68.5	71.50
80	79.4	80.6	78.5	81.50
90	89.3	90.7	88.25	91.75
100	99.3	100.7	98.25	101.75
110	109.3	110.7	108.25	111.75
120	119.3	120.7	118.25	121.75
130	129.2	130.8	128	132
140	139.2	140.8	138	142
150	149.2	150.8	148	152
160	–	–	158	162
180	–	–	178	182
200	–	–	197.7	202.3

Thread (d)					M 12	M 16	M 20	M 24	M 30	M 36	M 42	M 48	M 56	M 64
p^a					1.75	2	2.5	3	3.5	4	4.5	5	5.5	6
b ref				max^a	5.3	6	7.5	9	10.5	12	13.5	15	16.5	18
b ref				min	1.75	2	2.5	3	3.5	4	4.5	5	5.5	6
c				max	0.60	0.8	0.8	0.8	0.8	0.8	1.0	1.0	1.0	1.0
c				min	0.15	0.2	0.2	0.2	0.2	0.2	0.3	0.3	0.3	0.3
d_a max					13.7	17.7	22.4	26.4	33.4	39.4	45.6	52.6	63	71
d_w		Product Grade		A min	16.63	22.49	28.19	33.61	–	–	–	–	–	–
d_w		Product Grade		B min	16.47	22	27.7	33.25	42.75	51.11	59.95	69.45	78.66	88.16
e		Product Grade		A min	20.03	26.75	33.53	39.98	–	–	–	–	–	–
e		Product Grade		B min	19.85	26.17	32.95	39.55	50.85	60.79	71.3	82.6	93.56	104.86
k		nom.			7.5	10	12.5	15	18.7	22.5	26	30	35	40
		Product Grade		A max	7.68	10.18	12.715	15.215	–	–	–	–	–	–
		Product Grade		A min	7.32	9.82	12.285	14.785	–	–	–	–	–	–
		Product Grade		B max	7.79	10.29	12.85	15.35	19.12	22.92	26.42	30.42	35.5	40.5
		Product Grade		B min	7.21	9.71	12.15	14.65	18.28	22.08	25.58	29.58	34.5	39.5
kw^e		Product Grade		A min	5.12	6.87	8.6	10.35	–	–	–	–	–	–
kw^e		Product Grade		B min	5.05	6.8	8.51	10.26	12.8	15.46	17.91	20.71	24.15	27.65
r min					0.6	0.6	0.8	0.8	1	1	1.2	1.6	2	2
s		nom = max			18.00	24.00	30.00	36.00	46	55.0	65.0	75.0	85.0	95.0
		Product Grade		A min	17.73	23.67	29.67	35.38	–	–	–	–	–	–
		Product Grade		B min	17.57	23.16	29.16	35.00	45	53.8	63.1	73.1	82.8	92.8
Product grade
A			B
nom	min	max	min	max
2	1.8	2.2	–	–
3	2.8	3.2	–	–
4	3.76	4.24	–	–
5	4.76	5.24	–	–
6	5.76	6.24	–	–
8	7.71	8.29	–	–
10	9.71	10.29	–	–
12	11.65	12.35	–	–
16	15.65	16.35	–	–
20	19.58	20.42	18.95	21.05
25	24.58	25.42	23.95	26.05
30	29.58	30.42	28.95	31.05
35	34.5	35.5	33.75	36.25
40	39.5	40.5	38.75	41.25
45	44.5	45.5	43.75	46.25
50	49.5	50.5	48.75	51.25
55	54.4	55.6	53.5	56.25
60	59.4	60.6	58.5	61.50
65	64.4	65.6	63.5	66.50
70	69.4	70.6	68.5	71.50
80	79.4	80.6	78.5	81.50
90	89.3	90.7	88.25	91.75
100	99.3	100.7	98.25	101.75
110	109.3	110.7	108.25	111.75
120	119.3	120.7	118.25	121.75
130	129.2	130.8	128	132
140	139.2	140.8	138	142
150	149.2	150.8	148	152
160	–	–	158	162
180	–	–	178	182
200	–	–	197.7	202.3

Dimensions of IS 1364-2 Non-Preferred Threads

Thread (d)					M 3.5		M 14		M 18		M 22		M 27
p^a					0.6		2		2.5		2.5		3
a				max^a	13		34		42		50		60
a				min	19		40		48		56		66
c				max	0.40		0.60		0.8		0.8		0.8
c				min	0.15		0.15		0.2		0.2		0.2
d_a max					4.1		15.7		20.2		24.4		30.4
d_w		Product Grade		A min	5.07		19.64		25.34		31.71		–
d_w		Product Grade		B min	4.95		19.15		24.85		31.35		38
e		Product Grade		A min	6.58		23.36		30.14		37.72		–
e		Product Grade		B min	6.44		22.78		29.56		37.29		45.2
k		nom.			2.4		8.8		11.5		14		17
		Product Grade		A max	2.525		8.98		11.715		14.215		–
		Product Grade		A min	2.275		8.62		11.285		13.785		–
		Product Grade		B max	2.6		9.09		11.85		14.35		17.35
		Product Grade		B min	2.2		8.51		11.15		13.65		16.65
kw^e		Product Grade		A min	1.59		6.03		7.9		9.65		–
kw^e		Product Grade		B min	1.54		5.96		7.81		9.56		11.66
r min					0.1		0.6		0.6		0.8		1
s		nom = max			6.00		21.00		27.00		34.00		41
		Product Grade		A min	5.82		20.67		26.67		33.38		–
		Product Grade		B min	5.70		20.16		26.16		33.00		40
Product grade					l_s and l_g f_g
A			B		l_s	l_g	l_s	l_g	l_s	l_g	l_s	l_g	l_s	l_g
nom	min	max	min	max	min	max	min	max	min	max	min	max	min	max
8	7.71	8.29	–	–
10	9.71	10.29	–	–
12	11.65	12.35	–	–
16	15.65	16.35	–	–
20	19.58	20.42	–	–
25	24.58	25.42	–	–
30	29.58	30.42	–	–
35	34.5	35.5	–	–
40	39.5	40.5	38.75	41.25
45	44.5	45.5	43.75	46.25
50	49.5	50.5	48.75	51.25
55	54.4	55.6	53.5	56.5
60	59.4	60.6	58.5	61.5
65	64.4	65.6	63.5	66.5
70	69.4	70.6	68.5	71.5
80	79.4	80.6	78.5	81.5
90	89.3	90.7	88.25	91.75
100	99.3	100.7	98.25	101.75
110	109.3	110.7	108.25	111.75
120	119.3	120.7	118.25	121.75
130	129.2	130.8	128	132
140	139.2	140.8	138	142
150	149.2	150.8	148	152
160	–	–	158	162
180	–	–	178	182
200	–	–	197.7	202.3

Thread (d)					M 33		M 39		M 45		M 52		M 60
p^a					3.5		4		4.5		5		5.5
a				max^a	–		–		–		–		–
a				min	78		90		102		116		–
c				max	0.8		1.0		1.0		1.0		1.0
c				min	0.2		0.3		0.3		0.3		0.3
d_a max					36.4		42.4		48.6		56.6		67
d_w			Product Grade	A min	–		–		–		–		–
d_w			Product Grade	B min	46.55		55.86		64.7		74.2		83.41
e			Product Grade	A min	–		–		–		–		–
e			Product Grade	B min	55.37		66.44		76.95		88.25		99.21
k			nom.		21		25		28		33		38
			Product Grade	A max	–		–		–		–		–
			Product Grade	A min	–		–		–		–		–
			Product Grade	B max	21.42		25.42		28.42		33.5		38.5
			Product Grade	B min	20.58		24.58		27.58		32.5		37.5
kw^e			Product Grade	A min	–		–		–		–		–
kw^e			Product Grade	B min	14.41		17.21		19.31		22.75		26.25
r min					1		1		1.2		1.6		2
s			nom = max		50		60.0		70.0		80.00		90.0
			Product Grade	A min	–		–		–		–		–
			Product Grade	B min	49		58.8		68.1		78.1		87.8
Product grade					l_s and l_g f_g
A			B		l_s	l_g	l_s	l_g	l_s	l_g	l_s	l_g	l_s	l_g
nom	min	max	min	max	min	max	min	max	min	max	min	max	min	max
8	7.71	8.29	–	–
10	9.71	10.29	–	–
12	11.65	12.35	–	–
16	15.65	16.35	–	–
20	19.58	20.42	–	–
25	24.58	25.42	–	–
30	29.58	30.42	–	–
35	34.5	35.5	–	–
40	39.5	40.5	38.75	41.25
45	44.5	45.5	43.75	46.25
50	49.5	50.5	48.75	51.25
55	54.4	55.6	53.5	56.5
60	59.4	60.6	58.5	61.5
65	64.4	65.6	63.5	66.5
70	69.4	70.6	68.5	71.5
80	79.4	80.6	78.5	81.5
90	89.3	90.7	88.25	91.75
100	99.3	100.7	98.25	101.75
110	109.3	110.7	108.25	111.75
120	119.3	120.7	118.25	121.75
130	129.2	130.8	128	132
140	139.2	140.8	138	142
150	149.2	150.8	148	152
160	–	–	158	162
180	–	–	178	182
200	–	–	197.7	202.3

Note :
Range of popular lengths between the solid, boldface stepped line :
for product grade A, above the dashed, stepped line;
for product grade B, below this stepped line;

p is the pitch of the thread.
Values in accordance with a_max normal series, in ISO 3508
kw.min = 0.7 kmin

Specifications and reference standards

Material		Steel	Stainless steel	Non-ferrous metal
General Requirements	International Standard	ISO 8992
Thread	Tolerance	6g
	International Standards	ISO 724, ISO 965-1
Mechanical Properties	Property Class^a	d <3 mm: as agreed 3mm ≤ d ≤ 39 mm: 5.6, 8.8, 9.8, 10.9 d > 39 mm: as agreed	d ≤ 24 mm: A2-70, A4-70 24mm < d ≤ 39 mm: A2-50, A4-50 d > 39 mm: as agreed	Materials specified in ISO 8839
	International Standard	d ≤ 39mm : ISO 898-1 d < 3mm and d > 39mm: as agreed	d ≤ 39mm : ISO 3506-1 d > 39mm: as agreed
Tolerances	Product grade	For d ≤ 24mm and l ≤ 10 d or 150mm^b:A For d > 24mm or l > 10 d or 150mm^b:B
	International Standard	ISO 4759-1
Finish and/or coating		As Processed Requirements for electroplating are converted in ISO 4042. Requirements for non-electrolytically applied zinc flake coatings are converted in ISO 10683 If different electroplating requirements are desired or if requirements are needed for other finishes, they should be agreed between custom and supplier. Limits for surface discontinuities are covered in ISO 6157-1	Plain	Plain Requirements for electroplating are covered in ISO 4042.
Acceptability		For acceptance procedure, see ISO 3269
a For other property classes see ISO 898-1 for steel and ISO 3506-1 for stainless steel respectively. b Whichever is shorter.

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