D-Link 24 port Cat6 utp loaded patch panel

A screw is a small metal rod with a notch in the top that's used as a fastener. You can attach one piece of wood to another by rotating a screw through the two surfaces. A screw is similar to a nail, but instead of hammering it in, you turn it repeatedly with a screwdriver.

take a negative imprint of hard (teeth) and soft tissues in the mouth from which a positive reproduction (cast or