Housing: Cold rolled steel and zinc dichromate finish for rust resistance. Door Prep is a 2 1/8" bore, with 1/8" holes for through bolts at 12 o'clock and 6 o'clock positions.Trim: Grade 2: Removable throughboltsClutch Function: Standard on all LeversLatch: UL Approved, 3 hour fire tested. 2 3/4" Backset has 1/2" throw. Housing is steel-zinc dichromate finish for rust resistance. 7/8" diameter bore is required.Latch Front: Solid Brass/Stainless Steel 2 1/4" x 1 1/8" StandardStrike: UL Listed ANSI 1 1/4" x 4 7/8" standard with 1 1/4" lip to center dimension.Function: PassageDoor Thickness: 1 3/8" to 2"Backset: 2 3/4" (Not common for residential applications, please choose the option of 2 3/8" Backset if required)Handing: Universal Mounting: Fits both left and right handed doors.Rosette Diameter: 3 3/8"Lever Length: 6 1/8" (Including Rosette)Finish Shown: Polished Brass 
