Replace keyed cabinet access with a personal combination using the Olympus Lock 7850R Combi-Cam Round. Designed for cabinet doors and drawers, this three-dial combination cam lock offers up to 1,000 possible combinations and a resettable code.
The 7850R features zinc and steel construction, four cylinder-length options, and chrome or black finishes depending on the model. Three included cams provide options for fitting the lock to your application.
Designed to retrofit standard 3/4" diameter cam locks, the 7850R allows 90° cam rotation to the left or right, depending on stop-cam placement. Check material thickness, mounting clearance, and cam engagement before selecting your model.
Important: The 7850 does not provide key override or code retrieval. The current opening combination is required to reset the code.
Features and Specifications
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Operation: Three-dial, resettable combination.
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Possible combinations: Up to 1,000.
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Application: Cabinet doors and drawers.
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Construction: Zinc and steel.
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Barrel diameter: 3/4".
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Cylinder lengths: 5/8", 7/8", 1-1/8", or 1-3/8".
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Finishes: Chrome or black; extra-long model listed in chrome.
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Cam rotation: 90° left or right.
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Included cams: Two straight cams and one reversible offset cam.
Models and Size Options
| Model* | Finish | Cylinder Length | Maximum Material Thickness |
|---|---|---|---|
| 7850R-S | Chrome | 5/8" | 3/8" |
| 7850R-S-BLK | Black | 5/8" | 3/8" |
| 7850R-M | Chrome | 7/8" | 5/8" |
| 7850R-M-BLK | Black | 7/8" | 5/8" |
| 7850R-L | Chrome | 1-1/8" | 7/8" |
| 7850R-L-BLK | Black | 1-1/8" | 7/8" |
| 7850R-XL | Chrome | 1-3/8" | 1-1/8" |
Model numbers follow Olympus’s current product data sheet. Cylinder length is different from the maximum material thickness the lock accommodates.
Included Components
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3/4" straight cam.
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1-1/2" straight cam.
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1-1/2" cam with a 1/4" reversible offset.
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Pronged wood washer.
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Fixing nut.
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90° stop cam.
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Cam screw and lock washer.
Optional Accessories
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7850-DC Dust Cover: Covers the dials to help protect them from exposure to water, dust, and other elements.
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7850-FP Finger Pull: Provides a cabinet handle and mounts between the lock and cabinet surface.
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Additional straight and offset cams: Available separately for applications requiring a different cam configuration.
Frequently Asked Questions
Can I change the combination?
Yes. Set the lock to its current opening combination, hold the reset pin, select the new code, then release the pin. Reset an installed lock with the door or drawer open.
What is the factory combination?
The factory default is 0-0-0.
What happens if I forget the combination?
Olympus states that a forgotten code cannot be retrieved. Keep a secure record of your combination.
Can it be installed so users cannot reset the combination?
Yes. Olympus provides an installation configuration that prevents end users from resetting the code. Follow the manufacturer’s instructions for this setup.
Can the cam rotate in either direction?
Yes. Stop-cam placement determines clockwise or counterclockwise rotation. The included offset cam can also be installed in an inward or outward offset position.
Manufacturer Downloads
TITLE TAG: Olympus 7440 Combi-Cam Ultra Combination Cam Lock