BK

BK Series

Heavy & Standard Duty Cylindrical Knobs

ANSI/BHMA Grade 2

Features

  • UL 3 hour rated 1/2" throw deadlatch, completely reversible for flat and beveled door. Stainless steel latch bolt and faceplate
  • High precision, pick-resistant 6 pin tumbler solid brass cylinder. Can be construction keyed or masterkeyed as required
  • Cylinder knob removable for replacement or rekeying
  • Cylindrical body provides greater strength and durability. Two-sided spindle support mechanism eliminates knob wobble
  • Threaded roses to hold lock firmly in place
  • Coil compression springs for strength and durability
BK drawing

Specifications

Door Thickness: 1-1/2”(38mm) ~ 2”(51mm) doors standard.
Door Prep: Crossbore 2-1/8”(54mm), Edgebore 1”(25mm), Latch face 1-1/8”(28.6mm) x 2-1/4”(57mm).
Backset: 2-3/4” (70mm) standard. 2-3/8” (60mm) and 5” (127mm) optional
Cylinder: Solid brass, 6-pin anti-pick. Two (2) keys per lock, Schlage C keyway, keyed differently. Other keyways and keying services available
Handing: Non-handed
Trim: Solid zinc diecast levers. 55° lever rotation for full latch retraction
Clutch Function (CL): Outside lever freewheeling while locked to prevent vandalism
Rose: 3” (76mm) diameter brass rose with concealed screws. Threaded interior and exterior roses. Removable thru bolt
Latchbolt: 1/2” (12.7mm) throw, stainless steel 3 hour fire-rated latchbolt. Reversible for flat and beveled doors
Faceplate: 1-1/8” (28.6mm) x 2-1/4” (57mm) Square corner standard with stainless steel or brass faceplate
Strike: ANSI curved lip strike 4-7/8"(124mm) x 1-1/4" (32mm) x 1-1/4" (32mm) lip to center standard. Full lip strike or T strike available

Compliance

  • ANSI A156.2 Grade 2
  • UL 10C and UBC 7.2 3 Hour Fire Rated for positive pressure.
  • ANSI A117.1 ADA Barrier-free Accessibility
  • C-UBC California Uniform Builders Code-2001
  • NFPA-80 National Fire Protection-1999
  • NFPA-101 National Fire Protection-Life Safety-2000

Functions

Keyed Locks

CL-10

10 (ANSI: F75)

Passage Latch

  • Inside and outside levers are always unlocked
CL-25

25 (ANSI: F111) Exit/Communicating Lock

  • Inside lever always unlocked
  • Blank plate outside
  • Inside lever always free for emergency exit
CL-40

40 (ANSI: F76)

Bath/Bedroom Privacy Lock

  • Outside lever locked by push button inside
  • Outside lever unlocked by emergency release outside or rotating inside lever
  • If privacy pin is engaged while door is open, closing door disengages the pin and unlocks outer lever
  • Inside lever is always free to provide emergency exit
CL-17

17

Single Dummy Trim

  • Single dummy trim for one side of door only

Keyed Locks

CL-53

53 (ANSI: F109)

Entrance Lock

  • Push and turn inside button to lock outside lever
  • Until button is reset, key required to unlock outside lever
  • Pushing button without turning it locks outside lever until key is used or inside lever is turned
  • Inside lever always free for emergency exit
CL-80

80 (ANSI: F86)

Storeroom Lock

  • Outside lever is unlocked only while key is turned
  • Inside lever is always free for emergency exit
CL-70

70 (ANSI: F84)

Classroom Lock

  • Outside lever locked or unlocked by key
  • Unlocked, lockset works as passage set
  • Locked, key required from outside to unlock lockset
  • Inside lever always unlocked for emergency exit

Lever Designs

Lever Options

123
BK drawing
31 (BK Knob)

Latches and Strike

Dead Latches and Spring Latches
1-1/8" Faceplate

5

LSL01N

2-3/8" Spring Latch
3

LSL01K

2-3/8" Dead Latch
1

LSL02N

2-3/4" Spring Latch
6

LSL02K

2-3/4" Dead Latch
2

LSR-ASA

ASA Strike
(ANSI Standard)
1-1/4” x 4-7/8”

Finishes

Standard

26D Satin Chrome
26D Satin Chrome

 

10B_squareA
10B Oil Rubbed Bronze

CeraMax

C19G_squareA
C19G Graphite Black

 

C19_squareA
C19 CeraMax Flat Black

 

CDB_squareA
CDB Dark Bronze

 

CGY_squareA
CGY Stormy Grey

Custom finishes including CeraMax are available with MOQ and extended lead times.

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