Security tag housing

A housing for a security tag comprising:

• a top wall having a top wall outer surface and an opposed top wall inner surface;
• an annular sidewall wall extending outward from the top wall forming an intersection therebetween, the annular sidewall having a sidewall outer surface and a sidewall inner surface;
• a shoulder region formed proximate the intersection of the top wall and the annular wall;
• a first notch formed in a first portion of the shoulder region, the first notch having first and second projections extending towards one another, distal ends of the first and second projections being spaced apart a first distance forming a first gap therebetween, the first projection forming a first undercut region of the first notch, the second projection forming a second undercut region of the first notch;
• and
• a second notch formed in a second portion of the shoulder region, the second portion of the shoulder region being on an opposed side of top wall as the first portion of the shoulder region, the second notch having third and fourth projections extending towards one another, distal ends of the third and fourth projections being spaced apart a second distance forming a second gap therebetween, the third projection forming a third undercut region of the second notch, the fourth projection forming a fourth undercut region of the second notch.