GN 312Safety tension levers

with threaded insert

PUSH to engange

GN 312

Catalogue
d1
d2
d3
d4
d5
h1
h2
h3
h4
h5
l2
l3
GN 312-21-M6-D
21
M 6
13.5
8
20
-
34.5
4.5
39
3
81
70
GN 312-21-M8-D
21
M 8
13.5
8
20
-
34.5
4.5
39
3
81
70
GN 312-24-M8-D
24
M 8
16
10
25
-
41
6.5
47
3.5
108
96
GN 312-24-M10-D
24
M 10
16
10
25
-
41
6.5
47
3.5
108
96
GN 312-28-M10-D
28
M 10
19
12
30
-
49
8.5
56
4
124
110
GN 312-28-M12-D
28
M 12
19
12
30
-
49
8.5
56
4
124
110
GN 312-33-M12-D
33
M 12
23
12
32
-
56
10.5
65
4.5
140.5
124
GN 312-33-M16-D
33
M 16
23
12
32
-
56
10.5
65
4.5
140.5
124
GN 312-21-M6-E
21
M 6
13.5
8
20
37
-
4.5
62
3
75
70
GN 312-21-M8-E
21
M 8
13.5
8
20
37
-
4.5
62
3
75
70
GN 312-24-M8-E
24
M 8
16
10
25
44
-
6.5
87
3.5
101
96
GN 312-24-M10-E
24
M 10
16
10
25
44
-
6.5
78
3.5
101
96
GN 312-28-M10-E
28
M 10
19
12
30
53
-
8.5
93
4
116
110
GN 312-28-M12-E
28
M 12
19
12
30
53
-
8.5
93
4
116
110
GN 312-33-M12-E
33
M 12
23
12
32
60
-
10.5
105
4.5
131
124
GN 312-33-M16-E
33
M 16
23
12
32
60
-
10.5
105
4.5
131
124

Types

  • Type E: angled lever
  • Type D: straight lever

Steel

blackened

Tensile strength class 5.8

Ball knobs DIN 319 

Plastic, Duroplast

black, shiny finish

Safety tension levers GN 312 are used on such applications where a thoughtless or mistaken releasing or re-positioning of the tension lever could lead to an accident.

The lever in its rest position is not connected with the internal spindle and can be rotated unhindered.

The tension lever engages in the serration only after pushing it down, thus allowing clamping or unclamping.

The 'freewheel' position is re-established as soon as the handle is released.

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