| Key Types | Standards |
| Parallel Keys/ Flat Keys | DIN6885(A), UNI6604, ANSI/ASME B 18.25.3M, ISO2491 |
| Square And Rectangular Keys | ANSI/ASME B 18.25.1M, DIN 6885 (B) |
| Woodruff Keys | DIN6888, ISO 3912, ANSI/ASME B 18.25.2M, BS 4235-2, UNI6606 |
| Woodruff key Flat Bottom Keys | ANSI/ ASME B 18.25.2M |
| Taper Keys | DIN 6883, ISO 2492 |
| Gib Head Taper Keys | DIN6887, DIN6889, ISO2492(G), DIN6884 |
| Other Keys | DIN 6885 (C, D, E, F, G, H, J) |