Patent ID: 7765651

Claim:
A unitary hook fastener of a polymeric resin comprising: a base film layer having generally parallel upper and lower major surfaces; and a multiplicity of rows each having a multiplicity of spaced hook members projecting from the upper surface of said base film layer, the spaced hook members each comprising a stem portion attached at one end to said base film layer and a head portion at the end of the stem portion opposite said base film layer, at least some of the head portions having at least first and second adjacent hook head elements at the end of the stem portion, the at least first and second adjacent hook head elements each having first and second opposing sides spaced in the direction of the row, where the entire first opposing side of each first hook head element is flush with a first side of the stem portion but not with either the first or second opposing side of the second hook head element on the stem portion, where the second opposing side of each first hook head element is in face to face relation with the first opposing side of the second, adjacent hook head element on the stem portion, and where the first and second adjacent hook head elements each have hook engaging parts which project past a second side of the stem portion in substantially the same direction.