To provide an apparatus for concrete-buried object, allowing a bar member to be attached onto a concrete-buried object unrotatably, and facilitating the attachment of the bar member onto the concrete-buried object, and also to provide the bar member.

The apparatus 10 for a concrete-buried object is comprised of: a bar member 11 bendable in a three-dimensional direction by hand; and a wiring box 13 having a bar member insertion portion for inserting the bar member 11. The bar member 11 is equipped with an engagement protrusion 11a, and the bar member insertion portion of the wiring box 13 is equipped with a through insertion hole 20 and a slender groove 20a. By inserting the bar member 11 into the insertion hole 20, therefore, the engagement protrusion 11a is so engaged with the slender groove 20a as to prevent rotation along a peripheral direction of the bar member 11 in the insertion hole 20.

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