
Screw pin bow shackles have four definitive parts. The bow is the curved part opposite the pin where the load is applied. The ears are the parts of the shackle body that support the pin, and the pin is usually a steel bolt that spans the two shackle ears. The shoulder is the part of the pin that makes contact against the ear when fully threaded. The most common shackles are anchor shackles and bow shackles.

General Application


What should you avoid when using shackles?
· Do not replace the shackle pin with a bolt or unidentified pins. A load will bend the bolt.
· Do not allow a shackle to be pulled at an angle. The legs will open. Pack the pin with washers to center the shackle.
· Do not use screw pin shackles or fit pins in contact with moving parts if the pin can roll and unscrew. If the load shifts, the sling will unscrew the shackle pin.
· Do not use round pin shackles restrained only by a cotter pin for overhead lifting.
· Do not use shackles with bent pins or deformed bodies.
· Do not force, hammer or wedge shackles into position.
· Do not exceed 120 degrees for the angle when using multiple leg slings.

Screw Pin Bow Shackle Specification, AS2741 Standard Grade S
|
BODY DIA. MM |
WLL TON |
INSIDE LENGTH MM |
BOW WIDTH MM |
INSIDE WIDTH MM |
END WIDTH MM |
|
6 |
0.5 |
22 |
20 |
12 |
17 |
|
8 |
0.75 |
26 |
21 |
13 |
21 |
|
10 |
1 |
32 |
26 |
17 |
25 |
|
13 |
2 |
41 |
33 |
21 |
33 |
|
16 |
3.2 |
51 |
43 |
27 |
40 |
|
19 |
4.7 |
60 |
51 |
32 |
48 |
|
22 |
6.5 |
71 |
58 |
37 |
54 |
|
32 |
12 |
100 |
83 |
52 |
76 |
|
51 |
35 |
171 |
146 |
83 |
110 |
|
63 |
55 |
203 |
184 |
105 |
152 |
|
102 |
150 |
318 |
279 |
165 |
229 |

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