Click Specification

(Non-preferred) dimensions in parentheses.

Metric Spring Lock Washers - Type B

BS 4464 - 1969

Display drawing:

Size

M1.6

(M2.2)

M2.5

(M3.5)

M10

M12

(M14)

M16

(M18)

M20

d	max
	min
n	max
	min
h	Nominal Size
	max
	min

1.9	2.3	2.5	2.8	3.3	3.8	4.35	5.35	6.4	8.55	10.6	12.6	14.7	16.9	19	21.1
1.7	2.1	2.3	2.6	3.1	3.6	4.1	5.1	6.1	8.2	10.2	12.2	14.2	16.3	18.3	20.3
0.8	1	1.1	1.1	1.4	1.4	1.6	1.9	2.65	3.15	3.7	4.2	4.7	5.2	5.2	6.2
0.6	0.8	0.9	0.9	1.2	1.2	1.4	1.7	2.35	2.85	3.3	3.8	4.3	4.8	4.8	5.8
0.4	0.5	0.6	0.6	0.8	0.8	0.9	1.2	1.6	2	2.2	2.5	3	3.5	3.5	4
0.5	0.6	0.7	0.7	0.9	0.9	1	1.3	1.7	2.1	2.35	2.65	3.15	3.7	3.7	4.2
0.3	0.4	0.5	0.5	0.7	0.7	0.8	1.1	1.5	1.9	2.05	2.35	2.85	3.3	3.3	3.8

Size

(M22)

M24

(M27)

M30

(M33)

M36

(M39)

M42

(M45)

M48

(M52)

M56

(M60)

M64

(M68)

d	max
	min
n	max
	min
h	Nominal Size
	max
	min

23.3	25.3	28.5	31.5	34.6	37.6	40.8	43.8	46.8	50	54.1	58.1	62.3	66.3	70.5
22.4	24.4	27.5	30.5	33.5	36.5	39.6	42.6	45.6	48.8	52.8	56.8	60.9	64.9	69
6.2	7.25	7.25	8.25	10.25	10.25	10.25	12.25	12.25	12.25	14.25	14.25	14.25	14.25	14.25
5.8	6.75	6.75	7.75	9.75	9.75	9.75	11.75	11.75	11.75	13.75	13.75	13.75	13.75	13.75
4	5	5	6	6	6	6	7	7	7	8	8	8	8	8
4.2	5.2	5.2	6.25	6.25	6.25	6.25	7.25	7.25	7.25	8.25	8.25	8.25	8.25	8.25
3.8	4.8	4.8	5.75	5.75	5.75	5.75	6.75	6.75	6.75	7.75	7.75	7.75	7.75	7.75

①,H=2h±15%

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