For ease of use, the handle is cranked forwards, ensuring it protrudes a moderate distance from the window. They have a 7mm² x 38mm spindle and can be locked by way of a grub screw. Supplied with matching SS M5 screws. These espagnolettes are handed, so it's important to make sure you choose the correct hand. From the inside looking out, if your window is hinged on the right hand side then a right hand fastener is required and vice versa. Overall Length: 147mm Handle Length: 116mm Fixing Plate Size: 68mm x 16mm x 6mm Fixing Centres: 43mm