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DC Charger
TORQUE AND SCREW SIZING
The following table shows, broadly speaking, the recommended torque for both mechanical and electrical
connections, applicable to all cabinets
SCREW SIZE
METRIC
IMPERIAL
(mm)
M3
M4
5/32
M5
3/16
M6
M8
5/16
M10
7/16
M12
M14
9/16
M16
[a] For other qualities, follow the screw's manufacturer guidelines.
CAUTION
For all screwing that holds a particular component such as a bus, contactor, etc. it will be necessary to apply
the tightening torque indicated by the manufacturer of the same component
Screwing should be tightened correctly only, when necessary, i.e., when the factory marks are not in place. For
small screws that do not have marks follow common electrical practice.
1
The manufacturer recommends the use of Zinc Steel quality 8.8 bolts for internal connections in general, DC and
ground connections included.
2
The manufacturer recommends the use of A2-70 stainless bolts for external connections in general, AC
connections included.
Ford Pro contact info: chargingsupport@fordpro.com and 1-800-34-FLEET
[1,2]
.
DIN (Nm)
(in.)
6.9 QUALITY
8.8 QUALITY
[a]
1/8
1
2.5
4
1/4
5
20
40
1/2
60
100
5/8
150
NB 120 Installation Manual
RECOMMENDED TORQUE
ASTM (ft*lb)
A449 TYPE 1
[a]
[a]
1.3
3
-
6
8
4
20
9
40
25
60
38
120
54
210
75
A325 TYPE 1
[a]
-
50 – 58
-
99 – 120
14
EN
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