| http://www.w3.org/ns/prov#value | - at least one of said surfaces having a groove extending normal to the axis of said shank, said locking portion including an elongated locking member formed integrally with said shank rearwardly of said nose portion, said locking member defining a detent surfaces which extends generally normal to the axis of said shank whereby a force in a direction axially of said shank applied to said detent sur
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