403 the sheet 411 defines leaf springs 412 that extend from the fixed end along both sides of each of the slots 404 the leaf springs 412 each have a retainer 414 that enters a respective recess 410 the retainers 414 inhibit release of washers 20 through the enlarged openings 408 unless sufficient manual force is applied to a washer 20 to resiliently deform a respective leaf spring 412 to permit passage of a washer 20 from the slot 404 into the adjacent enlarged opening 408 particularly once the washer 20 is assembled with the screw 12 so that the screw and washer are engaged together so as to be handled as a unit the carrier 403 may be coupled to or incorporated into a surgical kit and may be in the form of a cartridge that is removable and replaceable within a surgical kit the versatility of using a single bone screw in either a locking screw hole or with a retainable washer in an elongated hole of a bone plate reduces the quantity of screws that must be available during the surgical procedure this potentially reduces the overall cost of the surgical kit because it is much less expensive to make retainable washers than to make bone screws there have been described and illustrated herein several embodiments of a washers for screws screw and washer assemblies and kits for dispensing washers during a surgical procedure while particular embodiments.