Amesbury P3000 3-point lock, Tongue version Lower & Upper Extension – Complete Positions of locking devices are measured from center of handle – Up and Down Faceplate Width: 25/32″ (20mm) Upper Tongue Position: TT = 26.39 Markings: UF32006 Bottom Tongue Position: BT = 26.42 Markings: LF32009 Lock Backset: 2-3/8″ (60mm) Cylinder Type: American Version with Slot Deadbolt Throw: 1″ (25.4mm) Door Panel Height: 82-95.5″ door Material: Stainless Steel Tongue versions are used with Astragals. The Rhino and Shootbolt can be used with or without astragal. To Lock Door: Throw the deadbolt, then lift handle to engage the tongues or Hooks 2. To Unlock Door: Retract deadbolt and push lever down to open.