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RIGGING HARDWARE
SHACKLES
FORGED ALLOY
Working Load Limit is premanently shown on every shackle.
Alloy bows and alloy bolts.
Forged Alloy Steel 30 ton thru 175 tons. Cast alloy steel 200
thru 400 tons.
Meets the performance requirements of Federal
Specifications RR C 271D, TYPE IVA, Grade B, Class 3.
ALLOY BOLT TYPE ANCHOR SHACKLE
Working
Nominal Load
Dimensions
Size
Limit
(in.)
A
B
C
D
E
F
G
H
J
K
L
(tons)*
1 1/2
30
2.38
3.62
1.62
1.63
5.75
1.39
6.88
7.75
10.00
3.88
1.54
1 3/4
40
2.88
4.19
2.25
2.00
7.00
1.75
8.86
9.06
12.34
5.00
1.84
2
50
3.25
4.81
2.40
2.25
7.75
2.00
9.97
10.41
13.68
5.75
2.08
2 1/2
80
4.12
5.69
3.12
2.75
10.50
2.62
12.87
13.56
17.84
7.25
2.71
3
110
5.00
6.50
3.62
3.25
13.00
3.00
14.36
16.50
21.50
7.88
3.11
3 1/2
140
5.25
8.00
4.12
3.75
14.63
3.75
16.50
19.00
24.62
9.00
3.62
4
175
5.50
9.00
4.56
4.25
14.50
4.00
18.42
19.75
25.69
10.00
4.10
4 3/4
200
7.25
10.50
6.00
4.75
15.62
3.75
21.00
20.50
29.25
11.00
4.50
5
250
8.50
12.00
6.50
5.00
20.00
3.88
24.50
21.97
35.00
13.00
4.50
6
300
8.38
12.00
6.75
6.00
19.50
4.75
25.00
24.35
35.25
13.00
5.00
7
400
8.25
14.00
7.25
7.00
22.50
6.50
26.00
27.97
40.25
13.00
6.00
NOTE: Maximum Proof load is 2.2 times the Working Load Limit. Minimum Ultimate Strength is 6 times the Working Load Limit.
Minimum Ultimate Strength is 4 times the Working Load Limit on 200 thru 400 tons.
Tow shackles suitable for marine tow
ing and for heavy lift construction
applications.
High strength alloy steel bodies and
pins.
Pull test certificates are available.
MARINE TOW SHACKLES
A
B
C
D Reach(in.)
Working Weight Each (lbs.)
Nominal
Pin
Jaw
Load
Anchor Chain
Anchor Chain
Size (in.) Dia.(in.) Width (in.)
Limit
2
2
3.25
7.75
6.75
44
41
36
2 1/4
2.25
4.5
9
7
57
62
62
2 1/2
2.5
4.5
10
10.5
71
88
86
2 3/4
2.75
4.5
11
11
80
112
110
3
3
4.5
13
13
94
133
125
NOTE: Maximum Proof load is 2.2 times the Working Load Limit. Minimum Ultimate Strength is 6 times the Working Load Limit.
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