Replacement of the plastic screws with the metal ones will keep your coin holders more secure..i prefer the brass or gold color myself i think it looks better but as long as they are metal it will be secured.

I use Capital Plastics coin holders, and these screws make the holders both more secure and more attractive than the plastic screws that are included with the holder. CoinSupplyExpress has a great price, and the item was delivered in a timely way. Thanks!