Black Nylon Slotted Drive Round Head Book Screw Receptacle - Thread Length 20.0 mm | 0.787 in; Thread Size M4

This is a slotted, white Nylon book screw which is used in conjunction with a mating receptacle (Should be ordered separately). Book screws are designed to join multiple sheets by screwing into a mating part either by hand or with a flat screwdriver.