Click Specification

(Non-preferred) dimensions in parentheses.

Countersunk Head Screws With Hexagon Socket

IS 6761 - 1994 (R2004)

Display drawing:

Thread Size
d

M10

M12

(M14)

M16

(M18)

M20

P	pitch
d_k	max
d_k	min
k	Nominal Size
r	min
s	Nominal Size
	max
	min
t	max
t	min
e	min

0.5	0.7	0.8	1	1.25	1.5	1.75	2	2	2.5	2.5
6	8	10	12	16	20	24	27	30	33	36
5.7	7.64	9.64	11.57	15.57	19.48	23.48	26.48	29.48	32.38	35.38
1.7	2.3	2.8	3.3	4.4	5.5	6.5	7	7.5	8	8.5
0.1	0.2	0.2	0.3	0.5	0.5	1	1	1	1	1
2	2.5	3	4	5	6	8	10	10	12	12
2.1	2.6	3.1	4.12	5.14	6.14	8.175	10.175	10.175	12.212	12.212
2.02	2.52	3.02	4.02	5.02	6.02	8.025	10.025	10.025	12.032	12.032
1.2	1.8	2.3	2.5	3.5	4.4	4.6	4.8	5.3	5.5	5.9
0.95	1.55	2.05	2.25	3.2	4.1	4.3	4.5	5	5.2	5.6
2.3	2.87	3.44	4.58	5.72	6.86	9.15	11.43	11.43	13.72	13.73

①,a=2.5P max

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