ME109L CLO FASTENER WITH CERAMIC KNOB LOCKING ME109L Clo Fastener with Ceramic Knob, Locking A decorative locking version of the Fitch Fastener complete with a decorative knob. A narrow keep makes it ideal for modern double glazed sash & case units. Material: Brass Weight : 129grams inc screws & Key Size of Plate:65mm x 19mm Height of Product: 48mm Sold as: Each With Screws: 5 Number 19mm x 4E.B. Raised Head, Countersunk, Slotted, Steel W/S Inner Box Quantity: 10 Outer Box Quantity: 100