Plastic fastener and plastic fastener assembly. The plastic fastener assembly may be a length of continuously connected fastener stock and may include a first flexible filament having a first end and a second end, a first cross-bar disposed at the first end of the first flexible filament, and a first paddle disposed at the second end of the first flexible filament. The plastic fastener assembly may further include a second flexible filament, the second flexible filament having a first end and a second end, a second cross-bar disposed at the first end of the second flexible filament, and a second paddle disposed at the second end of the second flexible filament. The plastic fastener assembly may further include a first severable connector interconnecting the first and second paddles. The first severable connector may include a pair of generally frusto-semi-circular members joined to one another at a generally planar break region.