Shackles - Quenched & Tempered
Screw Pin and Bolt Type
- Insure screw pin is tight before each lift.
- Use bolt type shackle for permanent installation.
- Do not side load round pin shackle.
- Use screw pin or bolt type to collect slings.
Maximum included angle: 120°
|
Design Factor:
Carbon Shackle - 6/1
Alloy Shackle - 5/1
| Nominal Size (in.) Diameter of Bow | Carbon Maximum Working Load (Tons) | Alloy Maximum Working Load (Tons) | Inside Width at Pin (in.) | Diameter of Pin |
| 3/16 |
1/3 |
n/a |
.38 |
.25 |
| 1/4 |
1/2 |
n/a |
.47 |
.31 |
| 5/16 |
3/4 |
n/a |
.53 |
.38 |
| 3/8 |
1 |
2 |
.66 |
.44 |
| 7/16 |
1-1/2 |
2.6 |
.75 |
.50 |
| 1/2 |
2 |
3.3 |
.81 |
.63 |
| 5/8 |
3-1/4 |
5 |
1.06 |
.75 |
| 3/4 |
4-3/4 |
7 |
1.25 |
.88 |
| 7/8 |
6-1/2 |
9.5 |
1.44 |
1.00 |
| 1 |
8-1/2 |
12.5 |
1.69 |
1.13 |
| 1-1/8 |
9-1/2 |
15 |
1.81 |
1.25 |
| 1-1/4 |
12 |
18 |
2.03 |
1.38 |
| 1-3/8 |
13-1/2 |
21 |
2.25 |
1.50 |
| 1-1/2 |
17 |
30 |
2.38 |
1.63 |
Hooks - Quenched & Tempered
Shank, Swivel, & Eye Hook
- Do not sideload.
- Do not tip load.
- Do not backload.
Maximum included angle: 90°
|
Eye Hook
|
Eyehook Design Factor: 5/1
(Except alloy 30 ton and larger are 4-1/2 to 1)
Shank and Swivel Design Factor: 4-1/2 to 1
| Nominal Size (in.) Diameter of Bow | Carbon Maximum Working Load (Tons) | Code | Alloy Maximum Working Load (Tons) | Code | Throat Opening (in.) | Deformation Indicator A-A |
| 3/16 |
3/4 |
DC |
1 |
DA |
.88 |
1.50 |
| 1/4 |
1 |
FC |
1-1/2 |
FA |
.97 |
2.00 |
| 5/16 |
1-1/2 |
GC |
2 |
GA |
1.00 |
2.00 |
| 3/8 |
2 |
HC |
3 |
HA |
1.12 |
2.00 |
| 7/16 |
3 |
IC |
*4-1/2 /5 |
IA |
1.06 |
2.50 |
| 1/2 |
5 |
JC |
7 |
JA |
1.50 |
3.00 |
| 5/8 |
7-1/2 |
KC |
11 |
KA |
1.75 |
4.00 |
| 3/4 |
10 |
LC |
15 |
LA |
1.91 |
4.00 |
| 7/8 |
15 |
NC |
22 |
NA |
2.75 |
5.00 |
| 1 |
20 |
OC |
30 |
OA |
3.25 |
6.50 |
| 1-1/8 |
25 |
PC |
37 |
PA |
3.00 |
7.00 |
| 1-1/4 |
30 |
SC |
45 |
SA |
3.38 |
8.00 |
| 1-3/8 |
40 |
TC |
60 |
TA |
4.12 |
10.00 |
*320 Eye Hook is now rated at 5 tons
