From The Anvil Blacksmith Standard Window Hook Fastener (64mm x 19mm), Black – 83639 BLACK

A stylish knob hook fastener used to secure your sash windownnIdeal for use on a narrow top rail due to a thin fixing of the keepnnFinish: BlacknnDimensions:nn- Fixing plate: 64mm x 19mmnn- Keep Plate: 64mm x 11mmnn- Projection: 39mmnnLockable by way of a grub screwnnSold in singles, supplied with hex key and all necessary fixing screwsnn