Hypodermic Needle
From BME Encyclopedia
A hypodermic needle is typically a steel tube with a bevelled cutting point on one end, and a receptacle for a syringe on the other end (usually a Luer lock). It is commonly used to inject medicines, drugs, and injectable anesthetics into the body.
These are commonly used in the world of body modification for play piercing, and the locking mechanism can be cut off in order to manufacture a piercing needle. Other needles come with a plastic sheath and are known as cannula needles.