Metric Size, Steel
Wedge Clamps

GN 920.1


RoHS Compliant

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Specification
Information

Wedge clamp: Steel, blackened, wedge surfaces hardened
Socket head cap screw: DIN 7984

Types:
GL - with smooth clamping jaws
GA - with 2 mounting threads for attachment jaws
RF - with serrated clamping jaws
PR - with prism-shaped jaws

Shipping

Clamping with GN 920.1 wedge clamps is acheived via the socket head cap screw and the clamp wedge, which function by moving both jaws outward.
When the screw is loosened, the clamp wedge returns to its original positoin via an internal return spring, which, in turn, loosens the tension.
Wedge clamps are ideal for multiple clamping operations, but can also be used for clamping individual workpieces.
The long hole in the clamp wedge serves to compensate for tolerances in the workpiece.
Tensile strength of socket head cap screw: 1000 N/mm2.

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For CAD download instructions, click
HERE

CAD COMING SOON

Type GL - With Smooth Clamping Jaws

Dimensions in:

millimeters
(inches)

 
Part Number d
Thread
b a h1 h2 l
length
Clamping force in kN per clamping jaw
min. max.
920.1-M8-21-GL
Download the CAD
M8 x 1.25 21
(.83)
39.5
(1.56)
44.5
(1.75)
15
(.59)
4.5
(.18)
15
(.59)
15 at 25 Nm
920.1-M8-25-GL
Download the CAD
M8 x 1.25 25
(.98)
39.5
(1.56)
44.5
(1.75)
15
(.59)
4.5
(.18)
15
(.59)
15 at 25 Nm
920.1-M8-32-GL
Download the CAD
M8 x 1.25 32
(1.26)
39.5
(1.56)
44.5
(1.75)
15
(.59)
4.5
(.18)
15
(.59)
15 at 25 Nm
920.1-M8-40-GL
Download the CAD
M8 x 1.25 40
(1.57)
39.5
(1.56)
44.5
(1.75)
15
(.59)
4.5
(.18)
15
(.59)
15 at 25 Nm
920.1-M8-50-GL
Download the CAD
M8 x 1.25 50
(1.97)
39.5
(1.56)
44.5
(1.75)
15
(.59)
4.5
(.18)
15
(.59)
15 at 25 Nm
920.1-M12-40-GL
Download the CAD
M12 x 1.75 40
(1.57)
40
(1.57)
45.5
(1.79)
22
(.87)
4.5
(.18)
21
(.83)
30 at 85 Nm
920.1-M12-50-GL
Download the CAD
M12 x 1.75 50
(1.97)
40
(1.57)
45.5
(1.79)
22
(.87)
4.5
(.18)
21
(.83)
30 at 85 Nm
 
Type GA - With 2 Mounting Threads

Dimensions in:

millimeters
(inches)

 
Part Number d
Thread
b a h1 h2 h3 l
length
m Clamping force in kN per clamping jaw
min. max.
920.1-M8-21-GA
Download the CAD
M8 x 1.25 21
(.83)
39.5
(1.56)
44.5
(1.75)
15
(.59)
4.5
(.18)
7.5
(.30)
15
(.59)
10
(.39)
15 at 25 Nm
920.1-M8-25-GA
Download the CAD
M8 x 1.25 25
(.98)
39.5
(1.56)
44.5
(1.75)
15
(.59)
4.5
(.18)
7.5
(.30)
15
(.59)
12
(.47)
15 at 25 Nm
920.1-M8-32-GA
Download the CAD
M8 x 1.25 32
(1.26)
39.5
(1.56)
44.5
(1.75)
15
(.59)
4.5
(.18)
7.5
(.30)
15
(.59)
16
(.63)
15 at 25 Nm
920.1-M8-40-GA
Download the CAD
M8 x 1.25 40
(1.57)
39.5
(1.56)
44.5
(1.75)
15
(.59)
4.5
(.18)
7.5
(.30)
15
(.59)
20
(.79)
15 at 25 Nm
920.1-M8-50-GA
Download the CAD
M8 x 1.25 50
(1.97)
39.5
(1.56)
44.5
(1.75)
15
(.59)
4.5
(.18)
7.5
(.30)
15
(.59)
30
(1.18)
15 at 25 Nm
920.1-M12-40-GA
Download the CAD
M12 x 1.75 40
(1.57)
40
(1.57)
45.5
(1.79)
22
(.87)
4.5
(.18)
11
(.43)
21
(.83)
20
(.79)
30 at 85 Nm
920.1-M12-50-GA
Download the CAD
M12 x 1.75 50
(1.97)
40
(1.57)
45.5
(1.79)
22
(.87)
4.5
(.18)
11
(.43)
21
(.83)
30
(1.18)
30 at 85 Nm
 
Type RF - With Serrated Clamping Jaws

Dimensions in:

millimeters
(inches)

 
Part Number d
Thread
b a h1 h2 l
length
Clamping force in kN per clamping jaw
min. max.
920.1-M8-21-RF
Download the CAD
M8 x 1.25 21
(.83)
34.5
(1.36)
39.5
(1.56)
15
(.59)
4.5
(.18)
15
(.59)
15 at 25 Nm
920.1-M8-25-RF
Download the CAD
M8 x 1.25 25
(.98)
34.5
(1.36)
39.5
(1.56)
15
(.59)
4.5
(.18)
15
(.59)
15 at 25 Nm
920.1-M8-32-RF
Download the CAD
M8 x 1.25 32
(1.26)
34.5
(1.36)
39.5
(1.56)
15
(.59)
4.5
(.18)
15
(.59)
15 at 25 Nm
920.1-M8-40-RF
Download the CAD
M8 x 1.25 40
(1.57)
34.5
(1.36)
39.5
(1.56)
15
(.59)
4.5
(.18)
15
(.59)
15 at 25 Nm
920.1-M8-50-RF
Download the CAD
M8 x 1.25 50
(1.97)
34.5
(1.36)
39.5
(1.56)
15
(.59)
4.5
(.18)
15
(.59)
15 at 25 Nm
920.1-M12-40-RF
Download the CAD
M12 x 1.75 40
(1.57)
40
(1.57)
45.5
(1.79)
22
(.87)
4.5
(.18)
21
(.83)
30 at 85 Nm
920.1-M12-50-RF
Download the CAD
M12 x 1.75 50
(1.97)
40
(1.57)
45.5
(1.79)
22
(.87)
4.5
(.18)
21
(.83)
30 at 85 Nm
 
Type PR - With Prism-Shaped Clamping Jaws

Dimensions in:

millimeters
(inches)

Part Number d
Thread
b a h1 h2 h3 l
length
w Clamping force in kN per clamping jaw
min. max.
920.1-M8-21-PR
Download the CAD
M8 x 1.25 21
(.83)
34.5
(1.36)
39.5
(1.56)
15
(.59)
4.5
(.18)
7.5
(.30)
15
(.59)
9
(.35)
15 at 25 Nm
920.1-M8-25-PR
Download the CAD
M8 x 1.25 25
(.98)
34.5
(1.36)
39.5
(1.56)
15
(.59)
4.5
(.18)
7.5
(.30)
15
(.59)
9
(.35)
15 at 25 Nm
920.1-M8-32-PR
Download the CAD
M8 x 1.25 32
(1.26)
34.5
(1.36)
39.5
(1.56)
15
(.59)
4.5
(.18)
7.5
(.30)
15
(.59)
9
(.35)
15 at 25 Nm
920.1-M8-40-PR
Download the CAD
M8 x 1.25 40
(1.57)
34.5
(1.36)
39.5
(1.56)
15
(.59)
4.5
(.18)
7.5
(.30)
15
(.59)
9
(.35)
15 at 25 Nm
920.1-M8-50-PR
Download the CAD
M8 x 1.25 50
(1.97)
34.5
(1.36)
39.5
(1.56)
15
(.59)
4.5
(.18)
7.5
(.30)
15
(.59)
9
(.35)
15 at 25 Nm
920.1-M12-40-PR
Download the CAD
M12 x 1.75 40
(1.57)
40
(1.57)
45.5
(1.79)
22
(.87)
4.5
(.18)
11
(.43)
21
(.83)
9
(.35)
30 at 85 Nm
920.1-M12-50-PR
Download the CAD
M12 x 1.75 50
(1.97)
40
(1.57)
45.5
(1.79)
22
(.87)
4.5
(.18)
11
(.43)
21
(.83)
9
(.35)
30 at 85 Nm