Fence staple

Claim 1

A fastener mounted on each of a plurality of wooden posts to hold barbed wire, a pair of straight substantially parallel spaced-apart shanks each sharpened at one end thereof and driven into said wooden post in a plane parallel to the post and straddling said wire, each of said shanks being integral at the other end thereof with a curved shoulder portion extending laterally outwardly in a direction away from the other one of said shanks, each shoulder portion including a first portion having a large radius of curvature centered outside the associated leg and a second portion having a small radius of curvature centered inside the associated leg, and an arcuate bight portion integral with and interconnecting said second portions of said curved shoulder portions and having a large radius of curvature centered between said legs for defining with the post an enlarged substantially elliptical opening having its minimum dimension in said plane greater than the lateral distance between said shanks and proportioned for accommodating free movement of two strand, four barbed wire therethrough, while said curved shoulder portions limit the distance that said shanks can be driven into the associated post for maintaining the uniformity of said enlarged opening whereby mounting of said fastener on the associated post provides support for said barbed wire passing therethrough yet permits free movement of the barbs as the wire is moved between a taut and a slack condition.