Checking M16 head connection: Same display does not necessarily mean compatibility.

The standard name is one of the items to check.

Even if the M16 marking matches, you can't assume that a head from a different manufacturer will fit. You need to check the screw pitch, effective length, neck hole depth, and connection method as well. Gather the model numbers of the head and body, the manufacturing date, and photos of the current connection point and consult with the retailer.

The compatibility between appearance and structure

Physical connection and a natural-looking match are two different things. Differences in neck shape, size, and skin tone also affect the final appearance. Even with the same color name, colors may not match depending on the manufacturer or production period. Requesting actual photos of the desired combination or examples of successful matches confirmed by the seller will make it easier to make a decision.

Don't try to overcome resistance with force.

If you notice any issues such as the screw getting stuck from the start, becoming crooked, or going in unexpectedly deep, stop working. Simply tightening it with a tool won't necessarily make it fit. Since loosening isn't always caused by the screw alone, check before disassembling or gluing. It's also important not to assume that connection automatically means it can be hung.