Torque Limiting Knob Screws / GN 3663

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Torque limiting knob screws GN 3663 are used when the manually applied torque is to be limited.
When turned clockwise, the torque mechanical system of the knurled knob triggers an „over-engagement“ as soon as the specified torque is reached. When turning anti-clockwise, the mechanical system locks such that the torque is not limited. When tightening, this will ensure that the maximum permissible torque is not exceeded. On the other hand, the torque necessary for releasing will always be transferred reliably.
After removing the cover and loosening the countersunk screw, the thread or bore insert can be dismantled.

Part Number

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Part Number
3663-42-M8-16-2
3663-42-M8-16-2,5
3663-42-M8-16-3,2
3663-42-M8-20-2
3663-42-M8-20-2,5
3663-42-M8-20-3,2
3663-42-M8-25-2
3663-42-M8-25-2,5
3663-42-M8-25-3,2
3663-42-M8-32-2
3663-42-M8-32-2,5
3663-42-M8-32-3,2
3663-42-M8-40-2
3663-42-M8-40-2,5
3663-42-M8-40-3,2

Standard Unit Price	Minimum order quantity	Volume Discount	Standard Shipping Days ?	Thread d2/d4	Length l (mm)	Diameter d1 (φ)	d4	Torque	Weight (kg)
66.20 € 35.09 €	1	Available	Same day Stock	M 8	16	42	M 8	2, 2	0.150
66.20 €	1	Available	7 Days	M 8	16	42	M 8	2,5, 2,5	0.094
66.20 € 35.09 €	1	Available	Same day Stock	M 8	16	42	M 8	3,2, 3,2	0.095
66.22 € 35.10 €	1	Available	Same day Stock	M 8	20	42	M 8	2, 2	0.057
66.22 € 35.10 €	1	Available	Same day Stock	M 8	20	42	M 8	2,5, 2,5	0.058
66.22 €	1	Available	7 Days	M 8	20	42	M 8	3,2, 3,2	0.060
66.60 €	1	Available	Same day Stock	M 8	25	42	M 8	2, 2	0.200
66.60 € 35.30 €	1	Available	Same day Stock	M 8	25	42	M 8	2,5, 2,5	0.118
66.60 € 35.30 €	1	Available	Same day Stock	M 8	25	42	M 8	3,2, 3,2	0.120
66.64 € 35.32 €	1	Available	Same day Stock	M 8	32	42	M 8	2, 2	0.200
66.64 € 35.32 €	1	Available	Same day Stock	M 8	32	42	M 8	2,5, 2,5	0.200
66.64 €	1	Available	7 Days	M 8	32	42	M 8	3,2, 3,2	0.240
66.54 € 35.27 €	1	Available	Same day Stock	M 8	40	42	M 8	2, 2	0.100
66.54 € 35.27 €	1	Available	Same day Stock	M 8	40	42	M 8	2,5, 2,5	0.110
66.54 € 35.27 €	1	Available	Same day Stock	M 8	40	42	M 8	3,2, 3,2	0.120

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Basic Attributes

Length l(mm)
12

16

20

25

32

40

50

63
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Diameter d1(φ)
27

34

42

52

62
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d4
M 4

M 5

M 6

M 8

M 10

M 12
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Torque
0,7, 0,7

1, 1

1,5, 1,5

2, 2

2,2, 2,2

2,5, 2,5

3,2, 3,2

3, 3

4, 4

5,5, 5,5
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Type
- 3663
Clear
Thread d2/d4
M 4

M 5

M 6

M 8

M 10

M 12
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