Rubbermaid Toolbox Latch (part # 010A)

grabcad

This is the latch portion of old Rubbermaid toolboxes from the 80s and 90s. I couldn't find the part, so I created one myself. To achieve greater strength, use 100% infill. Pilot holes are included in the model, but you will need to drill them out for your chosen hinge pin diameter. I made a longer hinge pin to provide more bearing surface on the "ears", which seems to work really well.