The Schlage Plymouth Combo Pack delivers what contractors and homeowners actually need from an entry lock set — ANSI/BHMA Grade 1 security in a single-cylinder deadbolt paired with a keyed entry knob, both operating with the same key. At 4.5 stars across 664 reviews for the matte black finish alone, this isn’t marketing hype.
The Grade 1 Difference
Grade 1 certification means this deadbolt passed the same abuse testing as commercial hardware. The testing involves 250,000 cycles, 10 strikes with a hammer, and resistance to 360 pounds of force. Most residential deadbolts are Grade 2 or 3. The Plymouth gives you commercial-grade security in a residential package.
The solid brass construction handles Montana’s temperature swings without the cracking you see in die-cast zinc alternatives. Resistant to picking and bumping — the two most common bypass methods for standard pin tumbler locks. This matters when response times stretch to 30+ minutes in rural areas.
| Specification | Value |
|---|---|
| Security Grade | ANSI/BHMA Grade 1 |
| Deadbolt Type | Single-cylinder (keyed exterior, thumb-turn interior) |
| Backset Options | Adjustable 2-3/8 in. or 2-3/4 in. |
| Latch Style | Adjustable/Universal latch |
| Bore Requirement | 2-1/2 in. bore |
| Construction | Solid brass |
Model Numbers and Finish Options
Model FB50N-V-PLY 505-605 covers your standard finishes. FB50N-G-PLY 622 gives you the matte black that’s flying off shelves. The Plymouth knob design works with five finish options:
- Bright Brass
- Matte Black
- Satin Nickel
- Polished Chrome
- Aged Bronze
The matte black outsells everything else 2:1 based on review counts. It hides fingerprints and matches modern black window frames that dominate new construction.
Installation Reality
DIY installation actually means DIY here. The adjustable latch compensates for doors that aren’t perfectly square — which is most doors after a few Montana winters. Compatible with standard backsets (2-3/8 in. or 2-3/4 in.) means it’ll fit 95% of residential doors without modification.
Phillips screwdriver is all you need unless you’re drilling fresh holes. The universal fit for right-handed or left-handed doors eliminates the guesswork. No special templates, no precision measuring — the adjustable components do the work.
The Real Value: System Compatibility
Here’s what Schlage won’t put in their marketing: Can be keyed alike with other Schlage C-keyway locks. That means one key for your house, shop, and rental property if you plan ahead. The C-keyway is Schlage’s residential standard — available at every hardware store, every locksmith.
2 keys included (Keyed Alike) gets you started, but any locksmith can cut extras or rekey the system to match your existing Schlage locks. This matters more than any security rating — nobody maintains multiple key rings if they can avoid it.
Common Questions
What’s included in the box? 1 x Single-cylinder deadbolt assembly, 1 x Keyed entry Plymouth knob (or lever in some variants), 2 x Keys (Keyed Alike), Mounting hardware (screws, strikes, latches), Installation instructions.
Does this fit standard doors? Works on wood, metal, or fiberglass doors with standard door pre-drills (2-1/2 in. bore). The adjustable 2-3/8 in. or 2-3/4 in. backset covers nearly all residential installations.
What’s the warranty coverage? Limited Lifetime Warranty on both the mechanical operation and the finish of the product. Schlage stands behind both function and appearance — unusual for finishes in this category.
How does this compare to smart locks? It doesn’t. This is mechanical security at its most refined. No batteries, no apps, no firmware updates. Just Grade 1 security that works every time you turn the key. If you want smart features, look at Schlage’s Encode or Connect lines. If you want bombproof reliability, you’re looking at it.
Frequently Asked Questions
Q: What security grade is the Schlage Plymouth Combo Pack deadbolt?
The Schlage Plymouth features an ANSI/BHMA Grade 1 deadbolt — the highest residential security rating available, which requires passing 250,000 cycles and resistance to 360 pounds of force. Most residential deadbolts are only Grade 2 or 3, making the Plymouth’s commercial-grade certification a significant security upgrade.
Q: Does one key work for both the deadbolt and knob?
Yes, the Schlage Plymouth Combo Pack comes keyed alike with both the deadbolt and entry knob operating with the same key. The system uses Schlage’s C-keyway, which can be rekeyed by any locksmith to match your existing Schlage locks.
Q: What door thicknesses and backsets does the Plymouth accommodate?
The Schlage Plymouth features an adjustable latch that fits standard 2-3/8 inch or 2-3/4 inch backsets and requires a 2-1/2 inch bore hole. The universal design works on wood, metal, or fiberglass doors and accommodates both right-handed and left-handed door swings.
Q: What finish options are available for the Plymouth?
The Schlage Plymouth comes in five finishes: Bright Brass, Matte Black, Satin Nickel, Polished Chrome, and Aged Bronze. Based on review counts, the Matte Black (model FB50N-G-PLY 622) is the most popular finish with 664 reviews at Home Depot alone.
Q: What’s covered under Schlage’s warranty for the Plymouth?
Schlage provides a Limited Lifetime Warranty covering both the mechanical operation and the finish of the Plymouth Combo Pack. This dual coverage for both function and appearance is uncommon in this product category.
Q: How does the Plymouth’s security compare to smart locks?
The Schlage Plymouth is a mechanical lock with Grade 1 security certification, offering pick and bump resistance through solid brass construction without requiring batteries or electronics. For smart features, Schlage offers separate Encode and Connect lines, but the Plymouth focuses purely on mechanical reliability and security.
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