This digital asset is precision-engineered for professional jewelry manufacturing (3D printing and investment casting). It provides a fully functional, heavy-duty integrated locking system with a traditional spring-tongue mechanism and side safety notches, specifically designed for thick round-profile bracelets. Design Specifications & Features:Mechanism Type: Integrated Hidden Box Clasp with a separate internal spring tongue and a matching rivet-hinge system.Component Breakdown: The model is split into 4 precise production components:Internal spring-lock tongue (trigger slide).Outer male locking bar with integrated design studs/notches.Combined assembly view of the locking insert.Main open profile tube with pre-calculated hinge slots and friction-grooves.Print-Ready: Perfectly closed manifold mesh (100% watertight) with zero geometry errors. All interlocking parts are modeled with the strict internal tolerances and clearance gaps required for post-casting assembly, riveting, and tension-fitting.

• The models can be printed out immediately and sent to the foundry. I personally guarantee the correctness of the models !!!All measurements are shown in photographs.

Sizes and formats you can think of, just click the Contact Designer button on the right to contact me.

I really appreciate that you have chosen my 3D models. I look forward to further cooperati