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-> Model RGG attaches various gratings
Attach
Various Bar Gratings to metal or other structural shapes.
Model RGG
Galvanized Carbon Steel
Model RSSGG
316-Stainless Steel
G-Clip model RGG is available in galvanized
or 316-stainless steel. It is a grating fastener used to fasten
bar grating to metal or other structural shapes,where the structural
flange is in a horizontal plane. The model "R" top is
a circular-shaped top, 2-1/8" diameter, 16 -gauge stamped
steel, in the shape of a shallow volcano. A dimpled center allows
hex-head cap screw to fit into the recess. Fits many odd-shaped
grating bar setups.
G-Clip model RGG- fastener consists of three
parts, which are assembled at the factory into a complete installation
unit, packed 50 units to a standard box.
Principal part is the body assembly, which
has a female thread form in its upper portion. Body lower portion
is die-stamped, with die-cut jaws facing upward, which contact
the underside of the structural member. Second part is the rounded,
stamped top, which fits onto the grating upper surface. The body
and top are joined by a 1/4" -20 threaded bolt, in proper
length for the application.
Installation Preparation
As with any grating fastener, care should be taken during the
grating layout, cutting and placement phase, to reduce the quantity
of grating bars that are located over the structural member flange
edge. This reduces the quantity of grating cross bars that interfere
with fastener placement, which otherwise requires cutting of cross
bars.
Tools Required
G-Clips can be installed using a handheld 7/16" nut driver.
Installation Guide
Hold the G-Clip top in hand, allowing the body portion to hang
downward. Fit the body between two bearing bars and lower the
unit until the body is below the grating bottom. Slide unit laterally
toward, and allow it to fit under, the structural member flange.
Pull upward on the top of the G-Clip, holding upward force. With
the formed lower-body secure under the flange area, tighten the
bolt with a 7/16" wrench, to complete the installation of
the G-Clip unit.
Torque Measurements
Common hand held nut drivers have a handle diameter of 1"
to 1-1/4", which will allow installation torque (resistance
to further tightening) of approximately 60 inch/pounds to be easily
achieved. This is sufficient for many installation requirements.
Electrical or pneumatic tools are often used on large grating
surface areas. Do not exceed torque values of 100 inch/pounds
if fastener reuse is desired.
How to Order
Determine total height of grating and thickness of flange area.
Quantities recommended
We recommend using a grating fastened point for every four (4)
square feet of grating, in average, pedestrian conditions. Where
vibration is present more fasteners should be used. Grating manufacturers'
recommendations should be consulted for further information.
Sizing Chart for RGG / RSSGG:
| Grating
Thickness |
Structural
Member Flange Thickness
|
|
|
1/4" to 3/4"
RGG-1
|
3/4" to 1-1/4"
RGG-2
|
1-1/4" to 1-3/4"
RGG-3
|
1-3/4" to 2-1/4"
RGG-4
|
| 1 inch
= A |
RGG-1A
|
RGG-2A
|
RGG-3A
|
RGG-4A
|
| 1-1/4
inch = B |
RGG-1B
|
RGG-2B
|
RGG-3B
|
RGG-4B
|
| 1-1/2
inch = C |
RGG-1C
|
RGG-2C
|
RGG-3C
|
RGG-4C
|
| 1-3/4
inch = D |
RGG-1D
|
RGG-2D
|
RGG-3D
|
RGG-4D
|
| 2 inch
= E |
RGG-1E
|
RGG-2E
|
RGG-3E
|
RGG-4E
|
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