Columbus Series Light Duty Storeroom Function Door Knob Set
The Columbus 7505 storeroom knob set has a deadlocking latch bolt operated key in the outside knob or by rotating the inside knob. The outside knob is always locked. The Columbus series has positive spring catch to keep knob from slipping off or being pulled off, heavy gauge cold rolled steel internal mechanism and 2-3/8" to 2-3/4" adjustable backset.
- Positive Spring Catch Prevents Knob Slipping or Being Pulled Off
- Concealed Screw Mounting
- 2-1/8" Cylindrical Housing for Strength and Durability
- Threaded Outside Rose
- Heavy Gauge Cold Rolled Steel Internal Mechanism
- ANSI A156.2
- Grade 3
- Adjustable 2-3/8" to 2-3/4" Backset
- Guard Bolt Deadlocks Latch Bolt Automatically
- 6 Pin Solid Brass "C" Keyway
- Knob Diameter: 2"
- Knob Projection: 2-5/8"
- Rose Diameter: 2-3/4"
- Door Thickness: 1-3/8" to 1-3/4"
- Standard Backset: 2-3/8" to 2-3/4" Adjustable
- Crossbore: 2-1/8"
- Edgebore: 1"
- Faceplate: 2-1/4" x 1-1/8"
- T Strike
Cal-Royal has focused on providing "Innovative and Value Added" hardware products and accessories to the builders industry since 1983. In accepting this charter, Cal-Royal has continued to be the leader in import hardware. Their product offering is designed to comply with the Americans with Disabilities Act (ADA) and to encompass all levels of ANSI classification, Grades 1, 2 and 3 as well as UL requirements. They offer a complete line of mortise locks, exit devices, door closers, hinges and many other hardware and trim products.
Additional Cal-Royal Links
- View Manufacturer Warranty
- Shop All Cal-Royal Products
- Shop All Cal-Royal Columbus Collection Products
Our SKU: Cal-Royal 7505
This product is listed under the following manufacturer number(s):
- Cal-Royal 7505US5
- Cal-Royal 750510B
Oil Rubbed Bronze
- Cal-Royal 7505US3
- Cal-Royal 7505US32D
Satin Stainless Steel
*Denotes a finish or option that has been discontinued
Cal-Royal 7505US32D Product Specifications
|Approved for Commercial Use||Yes|
|BHMA Certification||Grade 3|
|Cylinder||6 Pin C|
|Door Thickness||1-1/2", 1-3/4", 1-3/8", 1-5/8"|
|Handing||Left, Reversible, Right|
|Latch Faceplate||Square Corner|
|Manufacturer Warranty||Lifetime Limited|
|Material||Brass, Bronze, Steel|
|Number of Keys||2|
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