632 / 1618
3/110
Clamping
Systems
3
Design:
Hardened in operation, with a hardness of 58 ± 2 HRC, hardness penetration
depth 0.5-0.8. Thread is soft-rolled to DIN, ground parallel and burnished.
Application:
For tools with taper shank DIN 69871 and JIS 6339 (MAS BT) in
machining centres and CNC machines.
Retention stud
DIN 69872 A
Order
No.
SK
3685
d
1
mm
d
2
mm
d
3
mm
G
l
1
mm
l
2
mm
Deg.
0005
40
6.80
19 14 17 M16 54 26 15
0010
50
9.50
28 21 25 M24 74 34 15
(W380)
DIN 69872 B
Order
No.
SK
3685
d
1
mm
d
2
mm
d
3
mm
G
l
1
mm
l
2
mm
Deg.
0015
40
6.80
19 14 17 M16 54 26 15
0020
50
9.50
28 21 25 M24 74 34 15
(W380)
JIS B 6339, without hole
Order
No.
BT
3685
d
1
mm
d
2
mm
d
3
mm
G
l
1
mm
l
2
mm
Deg.
0035
40
6.80
15 10 17 M16 60 35 45
0040
40
6.80
15 10 17 M16 60 35 60
0045
40
6.80
15 10 17 M16 60 35 90
(W380)
JIS B 6339, with through hole
Order
No.
BT
3691
d
1
mm
d
2
mm
d
3
mm
G
l
1
mm
l
2
mm
Deg.
0035
40
6.80
15 10 17 M16 60 35 45
0040
40
6.80
15 10 17 M16 60 35 60
0045
40
6.80
15 10 17 M16 60 35 90
(W380)
Ott ring groove with through-hole
Order
No.
SK
3685
d
1
mm
d
2
mm
d
3
mm
G
l
1
mm
l
2
mm
Deg.
0050
40
7.50
25 21.1 17 M16 53 25 15
(W380)
Ott ring groove with internal
thread
Order
No.
SK
3685
d
1
mm
d
2
mm
d
3
mm
G
l
1
mm
l
2
mm
Deg.
0055
40
8.10
25 21.1 17 M16 53 25 15
(W380)
ISO 7388 II B with through-hole
Order
No.
SK
3685
d
1
mm
d
2
mm
d
3
mm
G
l
1
mm
l
2
mm
Deg.
0025
40
6.80
18.95 12.95 17 M16 44.5 16.4 45
0030
50
9.50
29.1 19.6 25 M24 65.5 25.55 45
(W380)
Buttress thread bolt, without hole
Order
No.
SK
3685
d
1
mm
d
2
mm
d
3
mm
G
l
1
mm
l
2
mm
Deg.
0060
40
14.50
S 20 x 2 17
– M16 56.2 28
–
(W380)
*
O
O
G
G
G
*
O
O
G
G
G
*
O
O
G
G
G
*
O
O
G
G
G
*
O
O
G
G
G
*
O
O
G
G
G
*
O
O
G
G
G
*
O
O
G
G
Tool holders
632