Technical Data Sheet

max = maximum; min = minimum
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Split Cotter Pins
Need custom DIN 94 cotter pins? Use the DIN 94 / ISO 1234 split-pin geometry as a starting template, then define nominal wire diameter, overall length, short and long leg lengths, eye or loop inside diameter, leg spacing, end form, material, surface treatment, tolerances and inspection. The approved drawing controls the finished non-standard split pin.
Use this DIN 94 drawing generator to configure dimensions, review the technical drawing and export a custom drawing for manufacturing. Whether the specification is written as DIN 94 or DIN94, this online drawing tool covers the same Split Cotter Pins standard reference.
DIN 94 is a legacy German reference and ISO 1234 is the current metric comparison path. Treat the standard as a starting geometry, not a fixed catalog limit: select the drilled-hole fit and change wire diameter, length, eye, leg proportions, material, finish or tolerances as required. Keep metric DIN/ISO split pins separate from inch ASME cotter pins; the approved drawing controls the final part.

max = maximum; min = minimum
Unit: mm
| Dimension | d/max | d/min | a/max | a/min | c/min | c/max |
|---|---|---|---|---|---|---|
| Φ0.6 | 0.5 | 0.4 | 1.6 | 0.8 | 0.9 | 1 |
| Φ0.8 | 0.7 | 0.6 | 1.6 | 0.8 | 1.2 | 1.4 |
| Φ1 | 0.9 | 0.8 | 1.6 | 0.8 | 1.6 | 1.8 |
| Φ1.2 | 1 | 0.9 | 2.5 | 1.25 | 1.7 | 2 |
| Φ1.6 | 1.4 | 1.3 | 2.5 | 1.25 | 2.4 | 2.8 |
| Φ2 | 1.8 | 1.7 | 2.5 | 1.25 | 3.2 | 3.6 |
| Φ2.5 | 2.3 | 2.1 | 2.5 | 1.25 | 4 | 4.6 |
| Φ3.2 | 2.9 | 2.7 | 3.2 | 1.6 | 5.1 | 5.8 |
| Φ4 | 3.7 | 3.5 | 4 | 2 | 6.5 | 7.4 |
| Φ5 | 4.6 | 4.4 | 4 | 2 | 8 | 9.2 |
| Φ6.3 | 5.9 | 5.7 | 4 | 2 | 10.3 | 11.8 |
| Φ8 | 7.5 | 7.3 | 4 | 2 | 13.1 | 15 |
| Φ10 | 9.5 | 9.3 | 6.3 | 3.2 | 16.6 | 19 |
| Φ13 | 12.4 | 12.1 | 6.3 | 3.2 | 21.7 | 24.8 |
| Φ16 | 15.4 | 15.1 | 6.3 | 3.2 | 27 | 30.8 |
| Φ20 | 19.3 | 19 | 6.3 | 3.2 | 33.8 | 38.6 |
Catalog fasteners commonly specified with this drawing family. Confirm size, material and property class against your project drawing.
ISO 1234 / DIN 94SS304 / —
ISO 1234/DIN 94 split pins for clevis pin and mechanical locking assemblies.
OEM Drawing / ISO 2341 ref / DIN 1434 ref42CrMo / 40Cr / 4140 / Hardened and Tempered
Pivot pins per OEM drawings with ISO 2341 / DIN 1434 references.
Send the completed drawing with hole fit, wire diameter, overall and leg lengths, eye geometry, material, finish, quantity and inspection requirements for engineering review and quotation.
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