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Mechanical
BURNDY
®
Canada: 1-800-387-6487
www.burndy.com
US: 1-800-346-4175
Blue highlighted items are industry standard and most frequently ordered.
TYPE HFB-P1
BAR CLAMP
ASSEMBLY COMPONENTS
For Copper Bar
To build your own high strength clamp
assembly for multiple flat bar using type HFB-
P1 bar clamps and clamping hardware, the
following tables have been provided. The
clamp assembly eliminates the need for
drilling the flat bar and is used in indoor and
outdoor applications.
*Z=Space between the bar clamp contact surfaces
† Ordered separately from BURNDY
®
.
* See table below when ordering assembly clamp-
ing bolts to specify correct bolt length in Cat. #.
NOTE:
When ordering assembly bolts specify
correct bolt length in catalog number as
indicated in table.
One Clamp Half
Bar Clamp Bar
“J”
Recommended
Catalog
Run Tap Bolt
Tightening
Number
‘A’
‘AA’
Dia.
L
W
Z
Torque in-lb
HFB22P1
2.00 2.00
3/8
4.38
4.38
*
240
HFB33P1
3.00 3.00
3/8
4.38
4.38
*
240
HFB42P1
4.00 2.00
3/8
5.75
5.75
*
240
HFB44P1
4.00 4.00
1/2
5.75
5.75
*
480
HFB63P1
6.00 3.00
1/2
7.75
4.75
*
480
HFB66P1
6.00 6.00
5/8
8.12
8.12
*
660
HFB88P1
8.00 8.00
3/4
10.50
10.50
*
1990
Bar Clamp Assembly Components
Copper
Silicon Bronze Clamping Hardware
Bus Bar
Split Lock
Width (Inches)
Bar Clamp
Bolts
Nuts
Washers
Run-A Tap-AA Qty.
Cat. No.
Qty.
Cat. No.
Qty.
Cat. No.
Qty.
Cat. No.
2
2
2
HFB22P1
4
38 X (*) HEB
4
38CHEN
4
38SW
3
3
2
HFB33P1
4
38 X (*) HEB
4
38CHEN
4
38SW
4
2
2
HFB42P1
4
38 X (*) HEB
4
38CHEN
4
38SW
4
4
2
HFB44P1
4
50 X (*) HEB
4
50CHEN
4
50SW
6
3
2
HFB63P1
4
50 X (*) HEB
4
50CHEN
4
50SW
6
6
2
HFB66P1
4
62 X (*) HEB
4
62CHEN
4
62SW
8
8
2
HFB88P1
4
75 X (*) HEB
4
75CHEN
4
75SW
Bolt Length
Clamp
“J”
When
When
When
When
When
When
When
When
Number
Bolt Dia.
Z = 1.25 Z = 1.50 Z = 1.75 Z = 2.00 Z = 2.25 Z = 2.50 Z = 2.75 Z = 3.00
HFB22P1
3/8 (-16)
3.00
3.25
3.50
4.00
4.00
4.50
4.50
5.00
HFB33P1
3/8 (-16)
3.00
3.25
3.50
4.00
4.00
4.50
4.50
5.00
HFB42P1
3/8 (-16)
3.00
3.25
3.50
4.00
4.00
4.50
4.50
5.00
HFB44P1
1/2 (-13)
3.25
3.50
3.75
4.00
4.50
4.50
5.00
5.00
HFB63P1
1/2 (-13)
3.25
3.50
3.75
4.00
4.50
4.50
5.00
5.00
HFB66P1
5/8 (-11)
3.50
4.00
4.00
4.50
4.50
5.00
5.00
5.50
HFB88P1
3/4 (-10)
3.75
4.00
4.50
4.50
5.00
5.00
5.50
5.50