card bracket

I Replaced the video card that shiped with my new xp 8300 pc and Im wondering if I need the bracket that screws to the chassis.It dont seem very secure.The card is a radeon HD 6850.If I do where can I get it. Thanks

There is a guide HERE on how to replace your graphics card. Hope this helps.

I am taking about the plastic part that goes on the end of the card.