Ideal for medium to high security doors in domestic and commercial applications. The lock features a heavy duty spring and can be used with both sprung and unsprung door handles and in conjunction with a euro profile cylinder. Backset mm 45.5 Bolt Throw mm 15 BS EN Classification 2M410F2BA10 CE Standard Web BS EN 12209:2003 Centres mm 47.5 Certifire Number CF5531 Corrosion Rating 1 - Clean, dry & low humidity environments Description Ideal for medium to high security doors in domestic and commercial applications. The lock features a heavy duty spring and can be used with both sprung and unsprung door handles and in conjunction with a euro profile cylinder. Faceplate Size H x W mm 155 x 25 Faceplate Type Square Finish Satin Nickel Keep Size H x W mm 152 x 29 Lock Case Depth mm 66 Lock Case Height mm 110 Lock Case Size H x D mm 110 x 66 Lock Case Width mm 15.5 Lock Follower Backset mm 45.5 No. of CSK Screws 4 Product Code 675020 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 66 / 45.5