Along the axis
The highest figure is for one part pulled straight along its axis: the WLL marked on an eye bolt. For M16 it is 700 kg.
Reference tool — not a lifting plan
Find the WLL and size of a DIN 580 eye bolt or DIN 582 eye nut before you order one.
DIN 580 · DIN 582 · C15E
WLL, angle, size.
Type a line (DIN 580 M16, eye nut M12, thread 16 mm, eye bolt 700 kg) or pick the part and the thread. Below, an offered part can be checked against the one wanted.
Examples:
Replacement check
On the standard and the thread alone: the material, finish, marks and certificate are checked separately.
All 130 engineering tools
Forged DIN 580 eye bolts and DIN 582 eye nuts in C15E steel are fitted to motors, gearboxes, pumps and covers so that they can be lifted. Enter the designation (DIN 580 M16, eye bolt M20, eye nut M12), the measured thread diameter and pitch or the WLL from the marks, or pick the part and the thread from the lists: the finder gives the WLL straight up, per part with two sling legs at up to 45° from the vertical, and per part screwed in at the side of the load, the eye size and thread length, draws the part and the lift, checks an offered part and writes an RFQ line.
This is reference data, not a rigging calculation: the WLL marked on the part, the maker’s information and the competent person decide. A figure is given only where two independent published tables agree; breaking loads, safety factors and tightening torques are not given here.
How an eye bolt is rated
Axis, angle, eye plane.
Two legs up to 45°
With two parts and a two-leg sling, each leg in the plane of the eye and at no more than 45° from the vertical, the 2010 and 2018 tables give a lower figure per part: 500 kg per eye bolt for M16. Over 45° the tables checked give no common figure.
At the side of the load
A pull across the plane of the eye is not allowed. For an eye bolt screwed into the side of the load and pulled in the plane of its eye, the tables give a figure of its own: 350 kg for M16.
| Thread | Eye bolt, axial, kg | Eye bolt, each, up to 45°, kg | Eye bolt, at the side, kg | Eye nut, axial, kg | Eye nut, each, up to 45°, kg | Eye nut, at the side, kg | Eye inside d2, mm | Eye outside d3, mm | Thread length l, mm |
|---|---|---|---|---|---|---|---|---|---|
| M6 | 75 | 55 | 38 | 75 | 55 | 38 | 20 | 36 | 13 |
| M8 | 140 | 100 | 70 | 140 | 100 | 70 | 20 | 36 | 13 |
| M10 | 230 | 170 | 115 | 230 | 170 | 115 | 25 | 45 | 17 |
| M12 | 340 | 240 | 170 | 340 | 240 | 170 | 30 | 54 | 20.5 |
| M14 | 490 | — | 245 | 490 | — | 245 | — | — | 27 |
| M16 | 700 | 500 | 350 | 700 | 500 | 350 | 35 | 63 | 27 |
| M18 | 850 | — | 425 | 850 | — | 425 | — | — | 30 |
| M20 | 1200 | 860 | 600 | 1200 | 860 | 600 | 40 | 72 | 30 |
| M22 | 1400 | — | 700 | 1400 | — | 700 | — | — | 36 |
| M24 | 1800 | 1290 | 900 | 1800 | 1290 | 900 | 50 | 90 | 36 |
| M27 | 2100 | — | 1050 | 2100 | — | 1050 | — | — | 45 |
| M30 | 3200 | 2300 | 1600 | 3200 | 2300 | 1600 | 65 | 108 | 45 |
| M33 | — | — | — | — | — | — | — | — | — |
| M36 | 4600 | 3300 | 2300 | 4600 | 3300 | 2300 | 75 | 126 | 54 |
| M39 | — | — | — | — | — | — | — | — | — |
| M42 | 6300 | 4500 | 3150 | 6300 | — | 3150 | 85 | 144 | 63 |
| M45 | — | — | — | — | — | — | — | — | — |
| M48 | 8600 | — | 4300 | 8600 | — | 4300 | 100 | 166 | 68 |
| M52 | — | — | — | — | — | — | — | — | — |
| M56 | 11500 | — | 5750 | 11500 | — | 5750 | — | — | 78 |
| M60 | — | — | — | — | — | — | — | — | — |
| M64 | 16000 | — | 8000 | 16000 | — | 8000 | — | — | 90 |
| M72x6 | — | — | — | — | — | — | — | — | — |
| M80x6 | — | — | — | — | — | — | — | — | — |
| M100x6 | — | — | — | — | — | — | — | — | — |
A dash: only one of the tables checked gives the value, or they differ; it is left out. The figures follow the 2010 and 2018 editions of DIN 580 and DIN 582, which agree on them; older catalogue tables differ at several 45° figures. Left out: the 45° figure for M14, M18, M22, M27, from M48 up and for the M42 eye nut; every figure for M33, M39, M45, M52, M60, M72x6, M80x6 and M100x6; any angle over 45°. Where both tables give it (M6 to M36), the eye size of the eye nut is the same as that of the eye bolt.
Sources
The DIN 580 and DIN 582 tables of the 2010 and 2018 editions as a standards reference site prints them; the user information of DIN 580:2018 and a C15E eye bolt table in a catalogue that follows it; the C15E eye bolt and eye nut tables of a maker of standard parts and of a lifting gear supplier; the data sheet of a maker of DIN 580 eye bolts, with tolerances; the user information of another lifting gear supplier. Every figure on this page is in at least two of them.
Before you send the request
Questions about eye bolts in an RFQ
What WLL does a DIN 580 M16 eye bolt have?
700 kg for one eye bolt loaded along its axis. With two eye bolts and a two-leg sling, each leg at up to 45° from the vertical, the 2010 and 2018 tables give 500 kg per eye bolt; screwed into the side of the load and pulled in the plane of the eye, 350 kg. A DIN 582 M16 eye nut has the same figures.
Is the 45° figure for one eye bolt or for the pair?
For one eye bolt. The DIN 580 and DIN 582 tables of 2010 and 2018 give it per eye bolt or per eye nut, for a sling leg at up to 45° from the vertical in the plane of the eye. Some catalogues print the column without a heading: ask the maker when it is not clear what a figure stands for. What the whole sling may lift follows from the rules for multi-leg slings.
Can an eye bolt take a side pull?
Not across the plane of the eye: the user information of the standard and the makers rule it out. The pull must run in the plane of the eye, and with two or more eye bolts each sling leg stays at no more than 45° from the vertical. Over 45° the tables checked here give no common figure.
Why are some figures missing?
A figure is shown only where two independent published tables give the same value. The 45° figures for M14, M18, M22, M27 and from M48 up, the eye size of some threads and every figure for M33, M39, M45, M52, M60, M72x6, M80x6 and M100x6 come from one table only, so they are left out. Older catalogue tables differ at several 45° figures; the ones here follow the 2010 and 2018 editions.
What should the request include?
The standard and the thread (DIN 580 M16 or DIN 582 M16), the material C15E, the WLL the part has to carry, the finish (bright, zinc plated or galvanised), the quantity and a photograph of the old part and its marks. For a fine thread, give the pitch as well.
Eye bolt found?
Send the line with a photograph of the marks.
The table gives the WLL the standard sets, not the one marked on the part on board. Attach a photograph of the part and its marks, and Vessel Core checks them before an offer goes back.
Buyer tools
