INDIAN STANDARD

HEXAGON HEAD BOLTS, SCREWS AND NUTS OF PRODUCT GRADE ‘C’

PART 3 HEXAGON HEAD NUTS

IS 1363 Part 3: 2002 / ISO 4034

IS 1363 Part 3 Steel : 4, 8, 10

Finish: Self, Zinc Plated, Hot Dip Galvanized

Screw Thread
d

M5

M6

M8

M10

M12

(M14)

M16

(M18)

M20

(M22)

M24

(M27)

P	Pitch
e	min
k	max
k	min
s	max=nominal size
s	min

0.8	1	1.25	1.5	1.75	2	2	2.5	2.5	2.5	3	3
8.63	10.89	14.2	17.59	19.85	22.78	26.17	29.56	32.95	37.3	39.55	45.2
5.6	6.4	7.9	9.5	12.2	13.9	15.9	16.9	19	20.2	22.3	24.7
4.4	4.9	6.4	8	10.4	12.1	14.1	15.1	16.9	18.1	20.2	22.6
8	10	13	16	18	21	24	27	30	34	36	41
7.64	9.64	12.57	15.57	17.57	20.16	23.16	26.16	29.16	33	35	40

Screw Thread
d

M30

(M33)

M36

(M39)

M42

(M45)

M48

(M52)

M56

(M60)

M64

P	Pitch
e	min
k	max
k	min
s	max=nominal size
s	min

3.5	3.5	4	4	4.5	4.5	5	5	5.5	5.5	6
50.85	55.37	60.79	66.44	71.3	76.95	82.6	88.25	93.56	99.21	104.86
26.4	29.5	31.9	34.3	34.9	36.9	38.9	42.9	45.9	48.9	52.4
24.3	27.4	29.4	31.8	32.4	34.4	36.4	40.4	43.4	46.4	49.4
46	50	55	60	65	70	75	80	85	90	95
45	49	53.8	58.8	63.1	68.1	73.1	78.1	82.8	87.8	92.8