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PIN
LUG COUPLINGS |
STANDARD
PIN LUG |
Size |
Thread |
Aluminum
with Brass Nut Part # |
Malleable
Iron Plated Part # |
Brass
Part # |
 |
1
1/4" |
NPSM |
- |
MI12 |
- |
1
1/2" |
NPSM |
AB15
|
MI15 |
BR15 |
|
1
1/2" |
NST |
AB15NST |
MI15NST |
BR15NST |
|
2" |
NPSM |
AB20
|
MI20 |
BR20 |
|
2
1/2" |
NST |
AB25
|
MI25 |
BR25 |
|
2
1/2" |
NPSM |
AB25NST |
MI25NST |
BR25NST |
|
3 |
NPSM |
AB30 |
MI
30 |
BR30 |
|
4 |
NPSM |
AB40 |
MI40 |
BR40 |
|
6 |
NPSM |
AB60 |
MI60 |
BR60 |
|
STEP
SIZE PIN LUG |
Size |
Thread
Size |
Thread |
Aluminum
Part # |
Malleable
Iron Plated Part # |
 (Sold by sets only) |
1
1/4" |
1
1/2" |
NPSM |
SS1 |
- |
1
3/8" |
1
1/2" |
NPSM |
SS2 |
- |
|
1
3/4" |
1
1/2" |
NPSM |
- |
SS6 |
|
1
3/4" |
2" |
NPSM |
- |
SS7 |
|
PIN
LUG WASHERS  |
Size |
Part
# |
1" |
RW100 |
|
1
1/4" |
RW125 |
|
1
1/2" |
RW150 |
|
1
1/2" |
RW150NST |
|
2" |
RW200 |
|
2
1/2" |
RW250 |
|
2
1/2" |
RW250NST |
|
3" |
RW300 |
|
4" |
RW400 |
|
6" |
RW600 |
|
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