THE JSN COIN BEZEL GUIDE
Prong-set or screw-top: choose your coin bezel closure
Both constructions can hold a compatible coin securely when fitted correctly. The difference is how the frame is fastened and how it should be handled.
Simplified illustrations. Proportions and construction vary by design.
Two ways to retain the coin
| Consideration | Prong-set | Screw-top |
|---|---|---|
| How it closes | Tabs on the back move over the seated coin's edge. | A small screw secures the frame opening. |
| Installation | Needs a suitable setting tool and careful pressure at the tabs. | Needs a screwdriver that fits the actual screw slot and careful thread alignment. |
| Removing the coin | Get advice before reopening tabs. Repeated bending can weaken them. | The closure can be opened for service, but still needs careful handling and a compatible coin. |
| Before wearing | Check the tabs and make sure the coin is retained evenly. | Check that the frame meets correctly and the screw is secure. |
| What stays the same | The coin must match the setting's intended diameter, thickness and issue. Neither design is a sealed protective holder. | |
Choose the construction you can fit and maintain
Start with settings confirmed for your coin. Then consider whether you prefer rear retaining tabs or a screw closure, and whether you will have a jeweler install it. If the fastening is unfamiliar, arrange help before attempting the fit.
A screw-top frame is not an adjustable holder for any coin. Prongs are not a way to bridge a gap around an undersized coin. In either design, correct seating comes before fastening.
Once you choose a size collection, use its Bezel type filter to see the available prong-set or screw-top designs.
A few useful distinctions
Is rope a third kind of closure?
Rope describes a border design. A rope-style bezel can use either closure, so check the product's fastening details.
Does screw-top mean the coin is completely protected?
No. The front and back remain exposed on an open-face bezel. The screw secures the setting; it does not seal the coin away from contact or moisture.
Which type is best for a valuable collector coin?
Have a coin specialist assess whether it should be mounted at all. Either type may leave contact marks, and wearing it can affect its collectible condition.