Coupling nuts, similar to DIN 6334

Coupling nuts, similar to DIN 6334, but instead of l=3d, we need lengths 11mm and 15mm.

We need them as fast as possible. We can do partial orders (~3000 pcs shipped ASAP)

~DIN 6334 A4 M 6 x 11 (key size 10) - 10000 pcs

~DIN 6334 A4 M 6 x 15 (key size 10) - 10000 pcs