Crosby® Shoulder Eye Bolt and Swivel Hoist Ring Load Limits
Shoulder Eye Bolts
- Never Exceed Working Load Limits.
- Never use regular nut eye bolts for angular lifts.
- Always use shoulder nut eye bolts for angular lifts.
- For angular lifts, adjust working load as shown above.
- Always tighten nuts securely against the load.
- Always apply load to eye bolt in the plane of the eye.
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Quenched & Tempered • Design Factor 5/1
| Shank Diameter | Working Load Limit In Linepull (lbs.) | Working Load Limit 60° Sling Angle (lbs.) | Working Load Limit 45° Sling Angle (lbs.) | Working Load Limit Angle Less Than 45° (lbs.) |
|---|---|---|---|---|
| 1/4 | 650 | 420 | 195 | 160 |
| 5/16 | 1200 | 780 | 360 | 300 |
| 3/8 | 1550 | 1000 | 465 | 380 |
| 1/2 | 2600 | 1690 | 780 | 650 |
| 5/8 | 5200 | 3380 | 1560 | 1300 |
| 3/4 | 7200 | 4680 | 2160 | 1800 |
| 7/8 | 10600 | 6890 | 3180 | 2650 |
| 1 | 13300 | 8645 | 3990 | 3325 |
| 1-1/4 | 21000 | 13600 | 6300 | 5250 |
| 1-1/2 | 24000 | 15600 | 7200 | 6000 |
Swivel Hoist Rings
- When using lifting slings of two or more legs make sure the forces in the leg are calculated. Select the proper size swivel hoist ring to allow for load in sling leg.
- Always insure hoist ring is free to align itself with sling.
- Always insure hoist ring is properly torqued to required value.
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Design Factor 5/1
| Shank Diameter |
Working Load Limit Full 180° Pivot (lbs.) | Thread Shank Size U.N.C. | Torque FT – (lbs) |
|---|---|---|---|
| 1/4 | 800 | 5/16 | 7 |
| 5/16 | 1000 | 3/8 | 12 |
| 3/8 | 2500 | 1/2 | 28 |
| 1/2 | 4000 | 5/8 | 60 |
| 5/8 | 7000 | 3/4 | 100 |
| 3/4 | 8000 | 7/8 | 160 |
| 7/8 | 10000 | 1 | 230 |
| 1 | 15000 | 1-1/4 | 470 |
| 1-1/4 | 24000 | 1-1/2 | 800 |
| 1-1/2 | 30000 | 2 | 1100 |