DIN 71412 is the standard cited for grease nipples (din 71412). This page sets out what the standard controls for this part, reproduces the dimensional table supplied against it, and notes the related designations referenced on drawings.
DIN 71412 — Scope
The table below lists the dimensions catalogued for grease nipples (din 71412) under DIN 71412. The scope of DIN 71412 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 71412. Tolerances for this part are the limits shown against each dimension in the table.
Dimensions Specified by DIN 71412
| Thread | Head angle | Form | Notes |
|---|---|---|---|
| M6 x 1.0 | straight (form A) | DIN 71412 A | commonest small nipple |
| M8 x 1.0 | straight (form A) | DIN 71412 A | general machinery |
| M8 x 1.25 | straight (form A) | DIN 71412 A | general machinery |
| M10 x 1.0 | straight (form A) | DIN 71412 A | general machinery |
| M10 x 1.0 | 45 degrees (form B) | DIN 71412 B | where a straight gun will not reach |
| M10 x 1.0 | 90 degrees (form C) | DIN 71412 C | tight or shrouded positions |
| R 1/8 in | straight (form A) | DIN 71412 A | tapered pipe thread |
| R 1/4 in | straight (form A) | DIN 71412 A | tapered pipe thread |
| 1/4-28 UNF | straight | inch series | imported and automotive equipment |
Companion Standards
A complete specification for grease nipples (din 71412) normally cites several documents: one for the geometry, one for the material or mechanical properties, and one for the finish. DIN 71412 is one of them, not all of them.
When to Specify DIN 71412
DIN 71412 is still widely used in European mechanical engineering and as a cross-reference on legacy drawings; its ISO equivalent is preferred for new designs.
Custom manufacturing · Made to drawing
Need a pipe & pneumatic fitting to this standard in a non-standard size?
Parts built to DIN 71412 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.
Minimum order from 2,000 pieces; samples within 7 days of drawing approval.
