Bi-directional buttonhead ties

A buttonhead tie comprising:

• a tie strap, the tie strap including a first side with a first strap lock portion and a second side with a second strap lock portion, the first strap lock portion including a plurality of first serrations;
• and
• a locking head, the locking head including an outer side opposite a panel side, the tie strap extending from the panel side of the locking head, the locking head further including:
• a first slot that extends through the locking head from the outer side to the panel side, the first slot configured to receive a portion of the tie strap therethrough, the first slot comprising a first proximal side proximal to a centerline of the locking head and a first distal side spaced apart from the first proximal side and the centerline;
• a second slot that extends through the locking head from the outer side to the panel side, the second slot configured to receive the portion of the tie strap therethrough;
• a first slot lock portion disposed within the first slot, the first slot lock portion configured to engage at least one of the first strap lock portion or the second strap lock portion when the portion of the tie strap is received within the first slot, the first slot lock portion comprising a first pawl connected to the locking head at a first hinged connection on the first proximal side;
• and
• a second slot lock portion disposed within the second slot, the second slot lock portion configured to engage at least one of the first strap lock portion or the second strap lock portion when the portion of the tie strap is received within the second slot.