Specification summary of DIN 6887 as applied to gib-head taper keys (din 6887): the dimensions the standard fixes, the full size range supplied, and the related designations commonly cross-referenced.
DIN 6887 — Scope
The table below lists the dimensions catalogued for gib-head taper keys (din 6887) under DIN 6887. The scope of DIN 6887 itself is not summarised here — where a figure matters, confirm it against the published document.
Tolerance & Product Grades
Product grade is a concept from dimensional fastener standards and does not apply to DIN 6887. Tolerances for this part are the limits shown against each dimension in the table.
Dimensions Specified by DIN 6887
| Shaft diameter over | to and including | Key width b (mm) | Key height h (mm) | Head |
|---|---|---|---|---|
| 10 | 12 | 4 | 4 | gib head |
| 12 | 17 | 5 | 5 | gib head |
| 17 | 22 | 6 | 6 | gib head |
| 22 | 30 | 8 | 7 | gib head |
| 30 | 38 | 10 | 8 | gib head |
| 38 | 44 | 12 | 8 | gib head |
| 44 | 50 | 14 | 9 | gib head |
| 50 | 58 | 16 | 10 | gib head |
| 58 | 65 | 18 | 11 | gib head |
| 65 | 75 | 20 | 12 | gib head |
Equivalent Standards
Where direct equivalents exist (ISO ↔ DIN, ISO ↔ ASME), they are listed on the parent Gib-Head Taper Keys (DIN 6887) page.
Always confirm against the dimensions on this page, since some "equivalent" standards differ in tolerances and head geometry.
Companion Standards
A complete specification for gib-head taper keys (din 6887) normally cites several documents: one for the geometry, one for the material or mechanical properties, and one for the finish. DIN 6887 is one of them, not all of them.
Custom manufacturing · Made to drawing
Need a machine key to this standard in a non-standard size?
Parts built to DIN 6887 are already in the catalog, so a special is usually a variation on existing tooling rather than a new design — which is what keeps the cost down. Made by milling or broaching & serration.
Minimum order from 2,000 pieces; samples within 7 days of drawing approval.
