Patent ID: 7695200

Claim:
A connecting member made of a resin composition, comprising one end face in which a plurality of fine holes are spaced by a pitch P therebetween to form an array in one horizontal row or a plurality of horizontal rows with a vertical distance therebetween, wherein: a diameter of the fine holes is given by a φ, a row-to-row distance of the fine holes is given by h which is, however, zero when the number of the rows of the fine holes is one, a diameter of the guide pin insertion holes is given by b φ, the pitch between the fine holes is given by P, a distance formed between each one of the guide pin insertion holes and nearest one of the fine holes is given by x, a center-to-center distance between each one of the guide pin insertion holes and the nearest one of the fine holes is given by L 1 , wherein: the following formula is met; 1<( x /( P−a ))<10, in which x is given by x =( L 1 2 +( h/ 2) 2 ) 0 5 −a/ 2 −b/ 2.