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Depth of M3 screws on 25D gearmotors?

Hoping someone can let me know the maximum depth for M3 mounting holes on 378:1 Metal Gearmotor 25Dx58L mm LP 6V (and I’m assuming/guessing it’s the same for all 25D motors!?)

I found this forum post, but suspect it might not be the same answer…


We recommend that the mounting screws go no further than 2mm into the mounting holes on the face of the 25D gearboxes. Other notes like this can be found on the motor’s product page.


Thanks @Rocky