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Astra 431 Series - Lock components

Astra handing definition - Which side of the door is the outside?

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ASTRA LOCK VESTIBULE B431-111 SC

Product Code: AST431111SC

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This product is a special order (BTO) and is not returnable.
Description

Astra B-Series brass body mortice lock.

  • Backset: 60 mm
  • Bolt projection: 14 mm
  • Non handed except when double cylinder functions are used
  • 1 cylinder
  • 1 escutcheon
  • 1 turnsnib
Function
  • Outside cylinder retracts the latchbolt
  • Inside turnsnib locks and unlocks outside lever handles
  • Inside lever always free
  • Inside and outside lever handles retract the latchbolt

Finished in satin chrome.

Technical Specifications
Brand ASTRA
Finish Satin Chrome
Lock Pitch In mm 64
Backset 60 mm
Handing Non-handed
Lockbody Has Turnsnib Hub Yes
Turnsnib Hub Spindle Type 4.5mm Square

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