Eye Bolt Spec Table
A bolt with a ring-shaped head for lifting heavy objects, attaching wire ropes, and connecting hoists.
Practical Notes
- Lift direction must align with bolt axis. At 45° angle, allowable load drops to just 25%.
- After full tightening, verify ring direction aligns with load. Misaligned lifting bends the bolt.
Selection Guide
For lifting heavy objects. WLL (Working Load Limit) is rated with 5:1 safety factor minimum. Load must align with bolt axis — angular loading drastically reduces capacity (to ~25% at 45°). Swivel eyebolts suit varying load directions. Caution: leaving eyebolts permanently installed risks vibration loosening.
Eye Bolt
KSJISEye Bolt
7 sizesThe dimensions below are identical across KS B 1033 · JIS B 1168.
| Nominal | D | d | H | L | E | C |
|---|---|---|---|---|---|---|
| M6 | 25 | 10 | 25 | 12 | 6 | 5 |
| M8 | 32 | 13 | 32 | 16 | 8 | 6 |
| M10 | 40 | 16 | 40 | 20 | 10 | 8 |
| M12 | 50 | 20 | 50 | 22 | 12 | 10 |
| M16 | 63 | 25 | 63 | 28 | 14 | 12 |
| M20 | 80 | 32 | 80 | 35 | 16 | 14 |
| M24 | 100 | 40 | 100 | 40 | 20 | 18 |
DINEye Bolt
11 sizes| Nominal | D | d | H | L | E | C |
|---|---|---|---|---|---|---|
| M8 | 36 | 20 | 36 | 13 | 8 | 6 |
| M10 | 45 | 25 | 45 | 17 | 10 | 8 |
| M12 | 54 | 30 | 53 | 20.5 | 12 | 10 |
| M16 | 63 | 35 | 62 | 27 | 14 | 12 |
| M20 | 72 | 40 | 71 | 30 | 16 | 14 |
| M24 | 90 | 50 | 90 | 36 | 20 | 18 |
| M30 | 108 | 65 | 109 | 45 | 24 | 22 |
| M36 | 126 | 75 | 128 | 54 | 28 | 27 |
| M42 | 144 | 85 | 147 | 63 | 32 | 30 |
| M48 | 166 | 100 | 168 | 68 | 36 | 34 |
| M56 | 184 | 110 | 187 | 78 | 42 | 40 |
Key Features
- Ring-shaped head for direct wire rope / shackle connection; swivels to load direction
- Working load limit (WLL) specified per JIS B 1168; designed with 5:1 safety factor
- M8–M48 range; SCM440 or S45C forged and heat-treated
Key Applications
Mold lifting, machine installation/removal, crane slinging, heavy cargo transport, equipment suspension
FAQ
How to check eyebolt WLL?
WLL is stamped on the bolt body or packaging. If absent, consult manufacturer catalog. Safety factor is 5:1 minimum.
When to use swivel eyebolts?
For varying load directions. Regular eyebolts support axial loads only; swivel types rotate to accept multi-directional loads.