Invention is related to the nails used in the surgical treatment of humeral fractures. And it is characterized with, humerus internal safe locking nail (1) which is including Locking pin (2) providing distal locking by outgoing from the distal hole of the nail (8) in pursuit of being screwed inside all along from the proximal of the humerus internal safe locking nail (1) At least one locking sending slot (3) on the locking pin (2) providing locking pin (2) to be sent to lock from the distal part At least one locking pin slot of the nail (5) on the proximal part of the humerus internal safe locking nail (1) providing locking pin (2) to proceed into humerus internal safe locking nail (1). At least one Threaded proximal part of the locking pin (11) on the locking pin (2) At least one threaded end of the locking pin (7) locking by outgoing from the distal hole of the nail on the locking pin (2) At least one Bone entering tip of the locking pin (9) providing locking by entering to the bone angularly on the threaded end of the locking pin (7) Anatomically angled tip on the distal part of the nail (10) in the form of curved and straight comprised on the distal part of the humerus internal safe locking nail (1). humerus internal safe locking nail (1) is characterized with humerus internal safe locking nail (1) including rotation preventive end structure of the nail (12) on the distal part.
