Schlage B250 Single Cylinder Deadlatch

B250 Series Grade 2 Deadlatch

Ideal for use on gates, utility panels and pipe chases, B250 Series accepts conventional and FSIC cylinders and features a thumbturn "holdback."

Overview

The B250 operates as a deadlatch for situations where the non-handled function of a deadbolt is desired but in a self-locking form. This makes it ideal for pool gates as a double cylinder and similar applications where relocking is essential to security. When used on solid doors as a single cylinder with thumbturn, the holdback function allows the latch to remain retracted so the lock can be used as a nightlatch

Features & Benefits

Security

• Exceeds ANSI/BHMA Grade 2 operational and security standards 
• 9/16" throw deadlatch resists prying attacks and "shimming" of the latch    
• Metal wood frame reinforcer uses 3" screws to anchor deep into wood door frame to protect against kick-in attacks 
• Free spinning, tapered cylinder collar with security insert resists wrenching and prying
• Patented Everest 29™ S123 keyway is provided standard which prohibits unauthorized key duplication 
• Restricted geographically exclusive Primus upgraded security options offer advanced key control and exceptional physical security
• UL 437 listed option resists drilling and physical attack on the cylinder 

Aesthetics

• Seven available finishes  
• Suites with nearly all Schlage and Von Duprin products

Functions

• Two functions as single or double cylinder options

Built to Last  

• Every Schlage lock undergoes intensive testing to determine its ANSI grade level including: cycle, resistance, door impact, warped door and bolt strength tests

Keyed functions

Single cylinder

• B250 Single cylinder deadlatch (night latch) - thumbturn x cylinder (ANSI E0122)

Specifications 

Material

• Trim rings: solid brass 7/16" and 1/8" each reinforced with a hardened steel security inserts 
• Cylinder: Solid brass in a solid zinc housing
• Dust box: wood frame reinforcer with polyproplylene dustbox and 3" screws standard

Door Thickness

• Standard door thickness: 1-1/2" to 1-3/4" (38 mm to 44 mm) conventional cylinder; 1-1/2" to 2-1/8" (38 mm to 54 mm) FSIC cylinder                                 

Deadbolt

• 1" housing diameter; 9/16" throw
• Backset: 2-3/8" (60 mm) fixed backset standard; 2-3/4" backset optional
• Faceplate: square corner 1-1⁄8" x 2-1/4" (29 mm x 57 mm) standard
• Strike: 1-1/8" x 2-3/4" T-strike with square corners and box standard; ANSI and round corner options available
• Strike lip length: 1-1⁄8" (29 mm) standard; extended lip strikes up to 2" optional

Certifications

ANSI/BHMA

• ANSI/BHMA A156.36-2020, Grade 2 auxiliary lock 

UL

• UL 437 listed when using Primus high-security UL 437 cylinder 

California Fire Code 

• Meets Building Code requirements

BAA/TAA

• Meets BAA (Buy American Act)