To provide a screw coupling strip assembling a drill screw and a seal washer in an existing screw holding belt, capable of tightening the screw by using the existing screw holding belt assembling only the drill screw and an existing continuous screw tightening machine, in which the screw holding belt has the enough size and strength for allowing to pass the screw head part.

The screw coupling strip 1 includes the screw holding belt 3 having an intermittent feed notch 22 provided at specified pitches along the lateral edge of a belt body 21 made of a belt-like body of synthetic resin, and having a screw holding part 23 provided at the same pitch as the intermittent feed notch 22 in the longitudinal direction of the belt body 21, the drill screw 3 having a screw shaft part 31 inserted into the screw holding part 23, and having a screw head part 33 held passably in the screw holding part 23, and a washer 4 assembled in the screw shaft part 3 inserted into the screw holding part 23, in which the holding belt 2 is disposed between the screw head part 33 and the washer 4.