Specification summary of ISO as applied to wire rope thimble: the dimensions the standard controls, the tolerance and product grades it defines, the full specified size range, and the equivalent DIN/ISO/ASME designations.
ISO — Scope
ISO specifies the dimensions and tolerances of wire rope thimble — iso / din (series 155). Material, property class, surface finish and packaging are governed by separate documents in the same standards family (for example ISO 898-1 for the mechanical property classes of bolts and screws).
Tolerance & Product Grades
ISO, alongside the related ISO / DIN entries on this site, specifies product grades (typically A or B for fine work and C for general engineering) and tolerance classes for the controlling dimensions. Choose the grade against the precision your application requires.
Dimensions Specified by ISO
| For rope diameter (mm) | Inside length (mm) | Outside length (mm) | Material | Reference standard |
|---|---|---|---|---|
| 4 | 18 | 28 | Galvanized steel | DIN 6899 / GB/T 5974 |
| 5 | 22 | 33 | Galvanized steel | DIN 6899 / GB/T 5974 |
| 6 | 25 | 38 | Galvanized steel | DIN 6899 / GB/T 5974 |
| 8 | 32 | 48 | Galvanized steel | DIN 6899 / GB/T 5974 |
| 10 | 38 | 58 | Galvanized steel | DIN 6899 / GB/T 5974 |
| 12 | 45 | 68 | Galvanized steel | DIN 6899 / GB/T 5974 |
| 16 | 58 | 88 | Galvanized steel | DIN 6899 / GB/T 5974 |
| 20 | 72 | 108 | Galvanized steel | DIN 6899 / GB/T 5974 |
| 24 | 86 | 128 | Galvanized steel | DIN 6899 / GB/T 5974 |
Equivalent Standards
Where direct equivalents exist (ISO ↔ DIN, ISO ↔ ASME), they are listed on the parent Wire Rope Thimble — ISO / DIN (Series 155) page. Always confirm against the dimensions on this page, since some "equivalent" standards differ in tolerances and head geometry.
Companion Standards
ISO controls only the geometry of wire rope thimble — iso / din (series 155). The mechanical strength is set by ISO 898-1 (bolts and screws) or ISO 898-2 (nuts); the surface finish is governed by separate finish standards (e.g. ISO 4042 for electroplating). For corrosion testing, the relevant document is ISO 9227 (neutral salt spray).