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Eight matte-black round passage door knobs with square latch plates

Probrico 8 Pack Passage Door Knob Black Finish

SKU CH-6DAF-8S2QT

Eight keyless passage knobs with adjustable 60 mm or 70 mm latch suit 35–45 mm doors and meet ANSI Grade 3 with 200000-cycle durability

  • MaterialAluminum
  • Commercial/ResidentialResidential
  • Keyless passage function for hallways and closets
  • Adjustable latch fits 35 mm to 45 mm doors
  • 60 mm or 70 mm backset options
  • Stainless steel with black finish resists rust
  • ANSI Grade 3 tested to 200000 cycles

Eight-pack passage set for hallways and closets

This Probrico pack supplies twelve round, non-locking knobs finished in black. Each knob operates freely from both sides so doors latch without a key. The hardware is intended for residential hallways, closets and similar rooms where privacy locking is not required.

Adjustable latch fits common door preparations

Every lockset includes an adjustable latch with 60 mm or 70 mm backset options. The mechanism fits doors 35 mm to 45 mm thick. The latch plate is square and non-removable, so the mortise must match that shape.

Stainless steel construction rated for 200000 cycles

The knobs are stainless steel with a black plated finish that resists rust. They meet ANSI Grade 3 requirements and use a five-pin brass tumbler cylinder with a solid security bolt for anti-sawing protection. No small fiddly parts are involved in the installation.

Highlights

  • Keyless passage function for hallways and closets
  • Adjustable latch fits 35 mm to 45 mm doors
  • 60 mm or 70 mm backset options
  • Stainless steel with black finish resists rust
  • ANSI Grade 3 tested to 200000 cycles

Specifications

MaterialAluminum
Commercial/ResidentialResidential

Questions about this item

How many operating cycles does the latch mechanism withstand before wear becomes a limit?

The latch is tested to exceed 200,000 cycles under ANSI Grade 3 requirements.

Does the black finish resist heat buildup or discolouration when the knob is used continuously throughout the day?

The stainless steel base with black plating will not rust or discolour with normal daily use.

What door thickness range must the existing doors fall within for the adjustable latch to fit without modification?

The latch fits doors 35 mm to 45 mm thick with a 60 mm or 70 mm backset.

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