Móc OpenGrid Chắc Chắn

A collection of strong openGrid hooks
Lengths: 20-25-30-35-40-45 and 50mm long

UPDATE: Added Parametric Fusion 360 file

1. hooklength: minimum 15mm, otherwise model will break
2. clearance: clearance in snap. -0.15mm works fine for me, still a little tight so hook doesn't come out too easily. 

10kg hanging from a 30mm hook. Almost at breaking point, it seems. Tried a little bit more but that tore out the snap. The hook didn't fail though. :-)