This part description likely refers to a specific screw or fastener for a Citroën 11CV. "T.EIND M7X70 BEV. V-BAK/KOP.H" indicates the size and characteristics of the screw or bolt, such as an M7 thread with a length of 70 mm. It is presumably an essential component for fastening or assembling parts within the car, possibly in the engine bay or body. This specification ensures a correct fit for the classic Citroën 11CV, a popular French car from the mid-20th century. Carefully selected for optimal performance and reliability.