The latch needle

a. The hook :Grasping  a new yarn in the process of  knitting i.e. the hook which draws  and retain the new loop.

b. The latch :Freely rotating around the axle and  tightly closing the hook owing to the spoon located at the end of the latch.

The latch blade :which locates the latch in the needle.

The latch spoon :which is an extension of the blade and bridges the gap between the hook and stem covering the hook when closed as shown in broken lines.

c. The stem: Which carries the loops in the clearing or rest position.

d. The rivet: Which may be plain or threaded? This has been dispensed with one most plate metal needles by pinching in the slot walls to retain the latch blade.  

e. The slot or Saw: Which receives the latch blade.

f. The Butt: Which serving to displace the needle along the needle bed slot.

g. The Tail: which is an extension bellow the butt giving additional support to the needle and keeping the needle in its trick.