Description
Corbin Russwin CK4355 GRD 630 Classroom Knob
This Corbin Russwin CK4355 GRD 630 is a classroom knob, finished in Satin Stainless Steel (630/US32D). Configuration: Grade 1, GRD Design.
How the classroom function works
A key from the outside locks or unlocks the outside lever; the inside lever is always free, so staff control access from the hallway side.
About this cylindrical lock
A cylindrical (bored) lock installs through a round hole in the door and a smaller hole in the edge, so it is quick to install and replace. The function sets how the inside and outside levers or knobs lock, and the ANSI/BHMA grade indicates durability: Grade 1 is the heaviest duty.
Specifications
| Brand | Corbin Russwin |
|---|---|
| Model / SKU | CK4355 GRD 630 |
| Product type | Classroom Knob |
| ANSI/BHMA grade | Grade 1 |
| Finish | Satin Stainless Steel – BHMA 630, US32D |
| Configuration | Grade 1, GRD Design |
Questions and answers
Will it fit my existing door?
Most commercial cylindrical locks use a 2-1/8" bore with a 2-3/4" backset. Check the backset and door thickness in the specifications, or ask us.
Is it handed?
Most lever locks are field reversible. If the specifications list a hand, order the matching hand.
Questions about fit, finish or keying? Call Security Lock Supply at (877) 202-8118.
