A medium duty tubular latch suitable for use in domestic and commercial applications. The latch should be used with sprung door furniture. Backset mm: 57.0. BS EN Classification: NPDM410F-B010. CE Standard Web: BS EN 12209:2003. Certifire Number: CF5531. Corrosion Rating: 1 - Clean, dry & low humidity environments. Faceplate Size H x W mm: 58 x 27. Faceplate Type: Square. Finish: Satin Nickel. Keep Size H x W mm: 56 x 24. Lock Case Depth mm: 76. Lock Case Height mm: 21. Lock Case Size H x D mm: 21 x 76. Lock Case Width mm: 15. Lock Follower Backset mm: 57.0. No. of CSK Screws: 4. Product Code: 675783. Rec Screw Dia. mm: 4.0. Rec Screw Gauge imp.: 8. Screw Size imp.: 8 x 1. Screw Size mm: 4.0 x 25. Screws Required Per Pair: 4. Size mm: 76 / 57.