Advance Tabco
Advance Tabco FC-1-1818-X Wall Mounted Sink 18 in x 18 in, 304
- Silver
$790.99
0.00932046BTC
In stock
Marks USA
Marks USA 21AC/26D-W-LHR Satin Chrome Left Hand Reverse Double Cylinder Mortise Door Lock
Left-hand-reverse mortise lockset with double-cylinder deadbolt and satin-chrome brass trim for out-swinging doors
- FinishSatin Chrome
- Selling UnitBox
- TypeOrnament Unilock Knobe Mortise Lockset
- FeaturesThrough-bolted knob plate assemblies
- Location TypeLeft Hand Reverse (For Out-Swinging Door)
- MaterialBrass
- Double cylinder operation requires a key on both sides for controlled access
- Through-bolted solid brass trim resists forced entry and withstands heavy use
- Satin chrome finish protects the brass from corrosion and daily wear
- Left hand reverse configuration matches out-swinging door installations
- 2-1/2 inch backset fits standard 1-3/8 to 1-3/4 inch door thicknesses
Purpose-built security hardware
The Marks USA 21AC/26D-W-LHR is a double-cylinder mortise lockset designed for left-hand-reverse, out-swinging doors. It suits commercial steel gates and residential storm doors where keyed access is required on both sides. The satin chrome finish over solid brass resists wear in high-traffic entries. This lockset is not for interior passage doors that need only a single cylinder or thumb-turn operation.
Build integration
The lock fits doors ranging from 1-3/8" to 1-3/4" thick and uses a 2-1/2" backset with a 1" x 7-1/8" front face plate. Through-bolted knob plate assemblies anchor directly through the door for rigid mounting on metal or wood. Two mortise cylinders and two keys are included, so no separate cylinder purchase is needed. The reversible design also accommodates right-hand doors if the handing is changed during installation.
Sustained operation
Solid brass construction and through-bolted trim resist loosening under repeated daily cycles. The 1" deadbolt throws fully into the strike with each key turn, maintaining consistent engagement over time. Satin chrome plating protects the underlying brass from corrosion on exterior gate applications. Two independent cylinders ensure the deadbolt can always be operated even if one keyway becomes contaminated.
Highlights
- Double cylinder operation requires a key on both sides for controlled access
- Through-bolted solid brass trim resists forced entry and withstands heavy use
- Satin chrome finish protects the brass from corrosion and daily wear
- Left hand reverse configuration matches out-swinging door installations
- 2-1/2 inch backset fits standard 1-3/8 to 1-3/4 inch door thicknesses
Specifications
| Brand | Marks |
|---|---|
| Model | 21AC/26D-W-LHR |
| Finish | Satin Chrome |
| Selling Unit | Box |
| Type | Ornament Unilock Knobe Mortise Lockset |
| Features | Through-bolted knob plate assemblies |
| Location Type | Left Hand Reverse (For Out-Swinging Door) |
| Material | Brass |
| Backset | 2-1/2" |
| Keying | Keyed Different |
| Style | Knobs |
| Series | 21AC |
| Function | Double Cylinder |
Questions about this item
How does the 1" deadbolt hold up when the lock is cycled continuously on a busy entry?
The 1" throw deadbolt is built into a commercial-grade mortise case designed for high-cycle steel-gate applications.
Does the satin chrome finish or the through-bolted brass trim generate noticeable heat or noise after hours of operation?
Solid brass components and a mechanical mortise mechanism produce no measurable heat and operate silently during normal use.
Which cylinders and keys come in the box so the lock works immediately on a 1-3/4" thick out-swinging door?
Two solid brass satin chrome mortise cylinders and two cut keys are included, ready for the 2-1/2" backset prep.
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