Abstract: A ball-hook fastener for connecting a belt to a bag has a hook body having a turned portion, a ball housed in a hole formed in the hook body, and a leaf spring for supporting the ball. The hole is formed in a base portion of the hook body. The leaf spring is fixed to a back of the hook body and has a recessed portion for rotatably supporting the ball at a free end thereof.

Abstract: A lock for a slide fastener to be installed in a catch plate of a first slider, which comprises a case to be connected to the first slider, a sliding plate slidably contained in the case and a locking member rotatably contained in the case. The sliding plate is guided by an inner surface of the case and a guide pin which is inserted through a slot of the sliding plate. The locking member and the sliding plate are engaged for locking of the slide movement of the sliding plate.Movable elements is reduced, and therefore the mechanism, construction and operation thereof are simple, smooth and easy.