---
title: "Lock Sets with Same Key — $9K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/tools-home-improvement/lock-sets-with-same-key"
last_updated: "2026-08-09T01:49:31.578Z"
locale: en
meta:
description: "Niche score 40/100 · $9K/yr market · 14K searches/yr · $56.22 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 40/100 · $9K/yr market · 14K searches/yr · $56.22 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Lock Sets with Same Key — $9K/yr Amazon US Niche (2026) - Flapen"
---
# **lock sets with same key**
**Skip it**
A small market ($9K/yr) — this niche doesn't clear our bar today.
Market size 2Growth 50Conversion 14Competition 29Returns 31Price range 95Avg price 91Brand share 33Review moat 47Quality gap 80
**Price range**
**Incredible****$27.88–$91.97**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Avg price**
**Great****$56.22**
avg listing price — sweet spot $15–$100
**Quality gap**
**Great****4.2★**
avg incumbent rating — lower means beatable quality
**Growth**
**Okay****+19.6%**
90-day search growth — must beat 0% to launch
**Review moat**
**Okay****1,799.53**
avg incumbent reviews — the moat a new listing must climb
**Brand share**
**Okay****85%**
top-5 brand share — brands hold most of the demand
**Returns**
**Okay****4.5%**
return rate — above 5% kills the launch gate
**Competition**
**Okay****68%**
top-5 click share — leaders hold, buyers still browse
**Conversion**
**Bad****1.1%**
search→purchase rate — share of searches ending in a sale
**Market size**
**Bad****$9K**
$9K/yr · 14K searches
**Signals**[** High Price**](https://flapen.com/research/niches?market=us&signal=high_price "Avg price > $50")
According to Flapen's Amazon United States niche tracking, lock sets with same key is a $9K/yr Amazon United States market (14K searches/yr). The top 5 brands hold 85% of demand. Demand peaks in Aug–Sep. Verdict: Skip it — 40/100.
Data updated Jul 27, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **lock sets with same key market data**
- **Units sold / yr**
- **500–750**
- avg 0–100/product
- **Revenue / yr**
- **$28K–$42K**
- units × avg price
- **Conversion rate**
- **1.1%**
- **Avg BSR**
- **#69**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **74%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **49 months**
- **Avg seller age**
- **162 days**
## **Competition & brand share**
The top 5 products take 68% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**11 **▲rising
**Sellers**
**36**
**Top-5 brand share**
**85%**
Top 20: 100%
**Top-5 click share**
**68%**
Top 20: 100%
**Open market**
**12%**
- Plustool37% - Brotima22% - Knobonly15% - BESTTEN7% - Camtek5% - Sopoby3% - Open — no brand owns it (5 brands, 12%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +19.6% search growth over the last 90 days.
1K800Spike '24Spike '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Aug, Sep · busiest ÷ quietest = 2.4×
[**Open Trend **](https://flapen.com/research/us/tools-home-improvement/lock-sets-with-same-key/trend)
## **Top lock sets with same key search terms**
- **4 pack door knob and deadbolt set**8K/yr+16.2%4.5% conv. - **4 door locks with same key**4K/yr+18.8%3.3% conv. - **exterior door lock set 4 pack**2K/yr+69.9%4.6% conv. - **door lock sets same key 4 pack**284/yr-82.0%11.1% conv. [**All search terms **](https://flapen.com/research/us/tools-home-improvement/lock-sets-with-same-key/search-terms)
## **Top lock sets with same key products on Amazon**
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
0%10%$86420%$2K30%$3K40%$3K1101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 19 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Plustool 4 Pack Front Door Lock Set Matte Black Exterior Door Lock Set with Deadbolt Single Cylinder Deadbolt Lock and Door Knob Set Keyed Alike Door Knob with Lock&Keys Round Ball Entry Door Lockset**Plustool**$48.72**4.3★336 rev](https://www.amazon.com/dp/B0FD9FZ4WQ) [2**Plustool 4 Pack Exterior Door Lock Set Satin Nickel Door Knob and Deadbolt Combo Set Keyed Alike Entry Door Knobs with Lock&Keys Round Ball Door Locksets with Deadbolt for Entrance and Front Door**Plustool**$48.33**4.2★267 rev](https://www.amazon.com/dp/B0FD9MQ69N) [3**Knobonly Keyed Alike Exterior Door Knob Round Outdoor Lock with One Sided Deadbolt Stainless Steel Satin Nickel Door Knobs Silver Door Handle Sets 4 Pack**Knobonly**$56.41**4.3★1,427 rev](https://www.amazon.com/dp/B07GZM11S9) [4**Brotima 4 Pack Keyed Entry Door Knob and Single Cylinder Deadbolt Combination Set in Satin Nickel Keyed Alike Exterior Knob Door Handle and Deadbolt Lock and Key Round Locking Lever Handle Set**Brotima**$63.07**4.6★856 rev](https://www.amazon.com/dp/B08NX74FNN) [5**Brotima 4 Pack Keyed Alike Front Door Knob and Deadbolt Set Entry Door Locksets with Single Cylinder Deadbolt Oil Rubbed Bronze Flat Round Door Lock Set for Bedroom/Office/Exterior Doors**Brotima**$79.02**4.6★856 rev](https://www.amazon.com/dp/B0CJ9RSSTY)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Goldenwarm 4 Pack Entry Door Lock with Deadbolt Keyed Unlike Oil Rubbed Bronze Exterior Door Knobs with Single Cylinder Deadbolt Stainless Steel Front Door Lock Sets for Rental Properties & Offices**Goldenwarm**$59.23**3 rev4mo ago](https://www.amazon.com/dp/B0G3VRRPG1) [**Camtek Matte Black Door Locks for Front Door Exterior Door Lock Set with Single Cylinder Deadbolt Lock Flat Square Door Handle for Front Door 4 Pack (All Same Keyed Alike)**Camtek**$91.97**109 rev7mo ago](https://www.amazon.com/dp/B0G57TR3WR) [**AEEKEL Exterior Door Knob with Lock and Key 4 Pack Keyed Alike Entry Door Knob for Front Door Lock Set Matte Black Bedroom Door Knobs with Lock and Single Cylinder Deadbolt Set**AEEKEL**$48.16**164 rev9mo ago](https://www.amazon.com/dp/B0FX4FB8ZS) [**AEEKEL Exterior Door Knob with Lock and Key 4 Pack Keyed Alike Entry Door Knob for Front Door Lock Set Brushed Nickel Bedroom Door Knobs with Lock and Single Cylinder Deadbolt Set**AEEKEL**$48.47**164 rev9mo ago](https://www.amazon.com/dp/B0FX4J9BSR) [**4 Pack BESTTEN Door Knob with Lock and Key Keyed Different Satin Nickel**BESTTEN**$34.58**11,408 rev10mo ago](https://www.amazon.com/dp/B0FD38W9X4)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Goldenwarm 4 Pack Entry Door Lock with Deadbolt Keyed Unlike Oil Rubbed Bronze Exterior Door Knobs with Single Cylinder Deadbolt Stainless Steel Front Door Lock Sets for Rental Properties & Offices**Goldenwarm**$59.23**1.8★**▲ 235%**](https://www.amazon.com/dp/B0G3VRRPG1) [**Camtek Matte Black Door Locks for Front Door Exterior Door Lock Set with Single Cylinder Deadbolt Lock Flat Square Door Handle for Front Door 4 Pack (All Same Keyed Alike)**Camtek**$91.97**4.4★**▲ 158%**](https://www.amazon.com/dp/B0G57TR3WR) [**BESTTEN 4 Pack All Keyed Same Exterior Door Knob with Key Lock and Deadbolt for Entrance and Front Door Satin Nickel**BESTTEN**$52.11**4.2★**▲ 140%**](https://www.amazon.com/dp/B0FDB2TPHT) [**BESTTEN 4 Pack All Keyed Same Exterior Door Knob with Key Lock and Deadbolt for Entrance and Front Door Matte Black**BESTTEN**$51.62**4.2★**▲ 107%**](https://www.amazon.com/dp/B0FDB2V242) [**Brotima 4 Pack Keyed Alike Front Door Knob and Deadbolt Set Entry Door Locksets with Single Cylinder Deadbolt Matte Black Flat Round Door Lock Set for Bedroom/Office/Exterior Doors**Brotima**$78.72**4.6★**▲ 63%**](https://www.amazon.com/dp/B0BLYNZ38S)
**~~View all trending →~~**
## **What buyers say about lock sets with same key**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Locking Mechanism**20%
*“The locks function well”*
**Value For Money**20%
*“Good Value”*
**Assembly/Installation**15%
*“They install easily and work smoothly”*
**Quality-Overall**12%
*“Good Quality”*
**Size-Overall**7%
*“Fit perfect”*
**Durability**3%
*“Very durable”*
**Strength**2%
*“Strong and turns smoothly”*
**Efficiency**2%
*“Works good”*
**Ease Of Use**2%
*“Easy to use, works well”*
**Design-Overall**1%
*“The finish looks sleek”*
### **What buyers complain about **
**Quality-Overall**21%
*“Low quality”*
**Locking Mechanism**16%
*“Not a re-keyable lock as described”*
**Advertised Vs Actual Product**9%
*“Wrong description”*
**Durability**6%
*“Amazing how easily it broke”*
**Strength**4%
*“Amazing how easily it broke”*
**Functionality-Overall**4%
*“They don't work”*
**Assembly/Installation**4%
*“Installation was a bit of a pain”*
**Hard Feel**3%
*“Stiff”*
**Compatibility-Overall**2%
*“This product doesnt line up when trying to replace it with another original qwikset setting”*
**Material Quality**2%
*“Low quality materials”*
### **Top return reasons **
**Size-Overall**21%
**Locking Mechanism**18%
**Advertised Vs Actual Product**10%
**Functionality-Overall**9%
**Defective Material/Parts**9%
**Mechanism Issues**6%
**Color**6%
**Quality-Overall**5%
**Value For Money**4%
**Compatibility-Overall**3%
## **Common questions**
- **Is lock sets with same key profitable to sell on Amazon United States?**
- The niche generates $9K/yr across 19 tracked products. 3 of 5 products launched in the last 360 days are still selling. 90-day search growth is +19.6%. Flapen's verdict: Skip it (40/100).
- **How competitive is the lock sets with same key niche?**
- 11 brands and 36 sellers compete. The top 5 products take 68% of clicks and top 5 brands hold 85% of demand.
- **What do buyers complain about in lock sets with same key?**
- Top complaints mined from reviews: Quality-Overall, Locking Mechanism, Advertised Vs Actual Product. The return rate is 4.5%.
- **When does demand for lock sets with same key peak?**
- Demand peaks in Aug–Sep; the busiest month runs 2.4× the quietest.
- **What does it cost to enter the lock sets with same key niche?**
- Listings span $27.88–$91.97; the average listing price is $56.22 (sweet spot $15–$100). The average incumbent carries 1,800 reviews — the moat a new listing must climb.
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