When Lifting Eye Nuts are required in A4 Stainless Steel, the alternative grades and the trade-offs between them matter as much as the dimensions. This page covers both, plus mechanical and corrosion data.
Why Choose A4 Stainless Steel for Lifting Eye Nuts
Specified for marine, coastal and chemical applications. For lifting eye nuts, this matters when superior, including marine and chloride environments is the primary requirement.
Mechanical & Physical Properties
| Grade designation | A4-80 (316) |
|---|---|
| Magnetic response | Largely non-magnetic |
| Service temperature | approx. -200 °C to +400 °C |
| Corrosion characteristic | Superior, including marine and chloride environments |
Corrosion Behavior in Service
A4 (316) adds 2–3% molybdenum to the A2 (304) composition, which dramatically improves resistance to chloride-pitting corrosion. For Lifting Eye Nuts in marine, coastal, swimming-pool or food-processing environments, A4 is the default selection.
Comparable Grades
For Lifting Eye Nuts, the alternative stainless grade is A2 (304). A2 (304) suits general indoor and outdoor service; A4 (316) adds molybdenum for marine and chloride environments. Where higher strength matters more than corrosion, switch to plated alloy-steel class 8.8 or 10.9.
Sizes of Lifting Eye Nuts Available in A4 Stainless Steel
| Thread size | Pitch (mm) | Ring inside diameter d (mm) | Ring outside diameter (mm) | Total height (mm) | Max load vertical (kg) | Reference standard | Notes |
|---|---|---|---|---|---|---|---|
| M6 | 1.0 | 20 | 36 | 36 | 70 | DIN 582 / WLL | Drop-forged lifting eye nut, vertical pull |
| M8 | 1.25 | 25 | 45 | 45 | 140 | DIN 582 / WLL | Drop-forged lifting eye nut, vertical pull |
| M10 | 1.5 | 30 | 54 | 54 | 230 | DIN 582 / WLL | Drop-forged lifting eye nut, vertical pull |
| M12 | 1.75 | 36 | 63 | 63 | 340 | DIN 582 / WLL | Drop-forged lifting eye nut, vertical pull |
| M16 | 2.0 | 45 | 81 | 81 | 700 | DIN 582 / WLL | Drop-forged lifting eye nut, vertical pull |
| M20 | 2.5 | 56 | 99 | 99 | 1200 | DIN 582 / WLL | Drop-forged lifting eye nut, vertical pull |
| M24 | 3.0 | 63 | 117 | 117 | 1800 | DIN 582 / WLL | Drop-forged lifting eye nut, vertical pull |
| M30 | 3.5 | 80 | 144 | 144 | 3200 | DIN 582 / WLL | Drop-forged lifting eye nut, vertical pull |
| M36 | 4.0 | 95 | 171 | 171 | 4600 | DIN 582 / WLL | Drop-forged lifting eye nut, vertical pull |