Metric Size, Steel
Horizontal Latch Type Toggle Clamps
with Horizontal Mounting Base and Clamping Arm
GN 851

RoHS Compliant

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This line drawing is movable on
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Specification
Parts in sheet metal: Case-hardened steel (C10), zinc plated, blue passivated
U-bolt latch: St. 37 steel, zinc plated, blue passivated
All mobile sections lubricated with special grease
Handle grip: high quality, oil resistant red plastic
Type T: Without U-bolt latch, with catch
Type T2: With U-bolt latch, with catch

Information
The stroke of the U-bolt latch of GN 851 latch type toggle clamps can be adjusted within its range.

The circular movement of the handle is transformed into linear action of the latch. These clamps are mostly used to fasten hinged lids on containers.
In the clamped position the U-bolt latch with clamping arm is parallel to the plane of the operating handle.
In addition to the standard lengths of the U-bolt latch shown in the table, a variety of other lengths are also available under the GN 951.1 Square U-Bolts series.
Also available in stainless steel series GN 851.
See also General Information on Toggle Clamps.
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Dimensions in:

millimeters
(inches)

Part Number
Size Ref.
Holding Capacity FH[N]
a
b1
b2
b3
b4
b5
d1
Thread
d2
h1~
h2
Type T Type T2
160
1600
12
(.47)
26
(1.02)
28
(1.10)
21
(.83)
20
(.79)
14
(.55)
M4 x .7
4.3
(.17)
26
(1.02)
18
(.71)
320
3200
16
(.63)
40
(1.57)
44
(1.69)
32
(1.26)
28
(1.10)
22
(.87)
M6 x 1.0
6.5
(.26)
30
(1.18)
25
(.98)
700
7000
24
(.94)
60
(2.36)
54
(2.13)
38
(1.50)
38
(1.50)
26
(1.02)
M8 x 1.25
8.5
(.33)
42
(1.65)
36
(1.42)

Size Ref.
l1~
l2
min.
m1
m2
m3
m4
m5
r~
at w2=0
s
w1
Stroke
w2~
Adjustable range
160
98
(3.86)
11
(.43)
19
(.75)
5
(.20)
16
(.63)
5
(.20)
10
(.39)
36
(1.42)
2
(.08)
25
(.98)
11
(.43)
320
152
(5.98)
19
(.75)
32
(1.26)
10.5
(.41)
19
(.75)
7
(.28)
14.3
(.56)
57
(2.25)
3
(.12)
38
(1.50)
10
(.39)
700
220
(8.66)
21
(.83)
38
(1.50)
9.5
(.37)
41.5
(1.63)
9.5
(.37)
19
(.75)
74
(2.91)
3.5
(.14)
58
(2.28)
22
(.87)