Kwikset 908 Biometric Smart Scan Electronic Deadbolt, Stain Nickel,Kwikset,908 15 BP RCAL(81254) RCS(85303) KD,888000324" /> Round corner adjustable latch. Full lip round corner strike. Anti pick 6-pin key system. Door Preparation( Cross Bore: 2-1/8&quot;. Edge Bore: 1&quot;. Latch Face: 1&quot; x 2-1/4&quot;. ) 1&quot; titanium alloy throwbolt core. Includes two conventional keys for back-up use.