For wire rope clip (u-bolt), DIN defines the dimensions, tolerances and product grades. The sections below describe the scope of the document, the properties it deliberately leaves to companion standards, and the equivalent designations across standards bodies.
DIN — Scope
DIN specifies the dimensions and tolerances of wire rope clip (u-bolt) — iso / din (series 157). 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
DIN, 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 DIN
| For rope diameter (mm) | U-bolt diameter (mm) | Saddle width (mm) | Bolt thread | Working load limit (kg) | Reference standard |
|---|---|---|---|---|---|
| 6 | M5 | 16 | M5 | 60 | DIN 1142 / GB/T 5976 |
| 8 | M6 | 20 | M6 | 110 | DIN 1142 / GB/T 5976 |
| 10 | M8 | 26 | M8 | 180 | DIN 1142 / GB/T 5976 |
| 12 | M10 | 32 | M10 | 260 | DIN 1142 / GB/T 5976 |
| 16 | M12 | 38 | M12 | 460 | DIN 1142 / GB/T 5976 |
| 20 | M14 | 45 | M14 | 720 | DIN 1142 / GB/T 5976 |
| 24 | M16 | 55 | M16 | 1050 | DIN 1142 / GB/T 5976 |
| 30 | M20 | 70 | M20 | 1640 | DIN 1142 / GB/T 5976 |
Equivalent Standards
Where direct equivalents exist (ISO ↔ DIN, ISO ↔ ASME), they are listed on the parent Wire Rope Clip (U-Bolt) — ISO / DIN (Series 157) page. Always confirm against the dimensions on this page, since some "equivalent" standards differ in tolerances and head geometry.
When to Specify DIN
DIN is still widely used in European mechanical engineering and as a cross-reference on legacy drawings; its ISO equivalent is preferred for new designs.