Aluminum
Adjustable Two-Way Clamping Joints

GN 490
RoHS Compliant

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Specification
Clamp mounting: Aluminum
--Plain, matte tumbled finish or
--Black powder coated, textured finish
Socket cap screws: DIN 912, AISI 304 stainless steel
Hexagon nuts: DIN 934, AISI 304 stainless steel
Adjustable lever: GN 300.1
--Handle: Zinc die-cast, silver powder coated, textured
  finish
--Insert & screw: Stainless steel, European standard   1.4305 (American standard 303 series)
--Spring: Stainless steel, European standard 1.4310 
  (American standard 301 series)
--Spacer bushing: Stainless steel, European standard
  1.4305 (American Standard 303 series)

Type A: With socket head cap screw
Type B: With adjustable lever

Information
GN 490 Adjustable Two-Way Clamping Joints clamp rods or tubes via a V-groove, allowing a greater Ø tolerance to be bridged. The pressure spring makes clamping and releasing easier.

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Type A with Socket Head Cap Screw

Dimensions in:

millimeters
(inches)

Part Number
d1
d2
Clamping Dia.
d3
l1
l4
l5
m
Matte Finish
Black Finish
Fits Inch Tubing Fits Metric Tubing
28
(1.10)
5/16"
8 mm
M6 x 1.0
14
(.55)
31.5
(1.24)
6
(.24)
22
(.87)
32
(1.26)
3/8"
10 mm
M8 x 1.25
16
(.63)
38
(1.50)
8
(.31)
27
(1.06)
36
(1.42)
1/2"
12 mm
M8 x 1.25
16
(.63)
38
(1.50)
8
(.31)
27
(1.06)
46
(1.81)
5/8"
16 mm
M10 x 1.5
20
(.79)
45
(1.77)
10
(.39)
32
(1.26)
 
Type B with Adjustable Lever

Dimensions in:

millimeters
(inches)

Part Number
d1
d2
Clamping Dia.
d3
l1
l2
l3
l4
l5
m
Matte Finish
Black Finish
Fits Inch Tubing Fits Metric Tubing
28
(1.10)
5/16"
8 mm
M6 x 1.0
14
(.55)
31.5
(1.24)
6
(.24)
31.5
(1.24)
6
(.24)
22
(.87)
32
(1.26)
3/8"
10 mm
M8 x 1.25
16
(.63)
38
(1.50)
8
(.31)
38
(1.50)
8
(.31)
27
(1.06)
36
(1.42)
1/2"
12 mm
M8 x 1.25
16
(.63)
38
(1.50)
8
(.31)
38
(1.50)
8
(.31)
27
(1.06)
46
(1.81)
5/8"
16 mm
M10 x 1.5
20
(.79)
45
(1.77)
10
(.39)
45
(1.77)
10
(.39)
32
(1.26)