---
title: "Mailbox Post Anchor — $193K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/patio-lawn-garden/mailbox-post-anchor"
last_updated: "2026-08-11T11:06:31.990Z"
locale: en
meta:
description: "Niche score 62/100 · $193K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 62/100 · $193K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Mailbox Post Anchor — $193K/yr Amazon US Niche (2026) - Flapen"
---
# **mailbox post anchor**
**Worth a look**
Shows a sweet-spot price point ($34.82 avg), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 38Growth 40Conversion 76Competition 67Returns 78Price range 73Avg price 95Brand share 84Review moat 88Quality gap 32
**Avg price**
**Incredible****$34.82**
avg listing price — sweet spot $15–$100
**Review moat**
**Great****242.29**
avg incumbent reviews — the moat a new listing must climb
**Brand share**
**Great****51%**
top-5 brand share — no brand owns this niche
**Returns**
**Great****1.8%**
return rate — above 5% kills the launch gate
**Conversion**
**Great****7.3%**
search→purchase rate — share of searches ending in a sale
**Price range**
**Good****$3.51–$119.16**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Competition**
**Good****45%**
top-5 click share — leaders hold, buyers still browse
**Growth**
**Okay****+11.6%**
90-day search growth — must beat 0% to launch
**Market size**
**Okay****$193K**
$193K/yr · 75K searches
**Quality gap**
**Okay****4.6★**
avg incumbent rating — lower means beatable quality
**Signals**[** No Dominant Brand**](https://flapen.com/research/niches?market=us&signal=no_dominant_brand "Top brand's click share < 20%") [** Low Review Barrier**](https://flapen.com/research/niches?market=us&signal=low_review_barrier "Top brand's reviews < 500")
According to Flapen's Amazon United States niche tracking, mailbox post anchor is a $193K/yr Amazon United States market (75K searches/yr). The top 5 brands hold 51% of demand. Demand peaks in Mar–Apr–May. Verdict: Worth a look — 62/100.
Data updated Jul 9, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **mailbox post anchor market data**
- **Units sold / yr**
- **5K–6K**
- avg 100–250/product
- **Revenue / yr**
- **$174K–$209K**
- units × avg price
- **Conversion rate**
- **7.3%**
- **Avg BSR**
- **#816**
- **Page quality**
- **0%**
- **Prime**
- **82%**
- **Sponsored**
- **94%**
- **Out of stock**
- **5.0%**
- **Avg brand age**
- **38 months**
- **Avg seller age**
- **175 days**
## **Competition & brand share**
The top 5 products take 45% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**26 **▲rising
**Sellers**
**51**
**Top-5 brand share**
**51%**
Top 20: 94%
**Top-5 click share**
**45%**
Top 20: 85%
**Open market**
**43%**
- Ideal Industries15% - American Ground Screw Mfg & Supply12% - Tandefio11% - XYADX7% - VEVOR6% - Gardner Bender6%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +11.6% search growth over the last 90 days.
4K3KSpike '25Holiday '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Mar, Apr, May · busiest ÷ quietest = 3.1×
[**Open Trend **](https://flapen.com/research/us/patio-lawn-garden/mailbox-post-anchor/trend)
## **Top mailbox post anchor search terms**
- **ground screws**36K/yr+20.9%4.4% conv. - **ground screw**26K/yr+6.5%2.2% conv. - **grounding screws**4K/yr+33.8%9.6% conv. - **green ground screws**3K/yr-19.0%17.2% conv. - **grounding screw**3K/yr-16.6%10.7% conv. - **grounding screws for electrical box**3K/yr-34.7%17.7% conv. [**All search terms **](https://flapen.com/research/us/patio-lawn-garden/mailbox-post-anchor/search-terms)
## **Top mailbox post anchor 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%4%$8K8%$15K12%$23K16%$31K1101001K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)1 product missing review or click data not plotted
All 24 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**IDEAL Electrical 774044R Combination Grounding Screws (100 Pack)**Ideal Industries**$8.05**4.8★213 rev](https://www.amazon.com/dp/B00NOYAJJQ) [2**Tandefio 100 Pcs Green Ground Screws for Electrical Box 10-32 x 3/8 Inch Hex Head Electrical Grounding Screw Combo Slotted Hex Washer Head for Electricals Junction Box Metal Outlet and Switch Boxes**Tandefio**$8.80**4.8★96 rev](https://www.amazon.com/dp/B0CJM5B65Y) [3**American Ground Screw U-Model - Easy-Install No-Dig Ground Anchor for Standard 4x4 Posts (Actual 3.5x3.5) - Durable 27 Screw-in Stake for Mounting Wooden Posts**American Ground Screw Mfg & Supply**$34.59**4.6★618 rev](https://www.amazon.com/dp/B0787KBCS5) [4**Gardner Bender GGS-1512R Grounding Screws Green 12 Pack**Gardner Bender**$3.51**4.7★419 rev](https://www.amazon.com/dp/B000BO4H0O) [5**Keltrion 8 Pcs 14 Ground Anchors Screw in Non-Rust Cast Aluminum Detachable Tent Stakes for Camping Tents Sand Trampoline Swing Sets and Sheds**Keltrion**$37.10**4.6★261 rev](https://www.amazon.com/dp/B0F1FS3RW9)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Aoserge 100 Pcs Green Ground Screws for Electrical Box 10-32 x 3/8 Inch Carbon Steel Hex Head Grounding Screws with Slotted Hex Washer Head Robust Corrosion-Resistant**Aoserge**$6.96**0 rev8mo ago](https://www.amazon.com/dp/B0FX7WVGR8) [**Kyuionty 100 Pcs Green Grounding Screws 10#-32 x 3/8 Inch Combo Electrical Screws Slotted Hex Washer Head for Electrical Junction Box Metal Outlet Switch Boxes**Kyuionty**$6.85**2 rev9mo ago](https://www.amazon.com/dp/B0FR2282MT) [**AOIGU 100 PCS Green Ground Screws for Electrical Box 10-32 x 3/8 Inch Combo Grounding Screw Hex Phillips Head for Junction Box and Electric Outlet**AOIGU**$8.45**16 rev11mo ago](https://www.amazon.com/dp/B0FKMVK9QH) [**100 PCS Ground Screw Electrical Panel Screws Ground Screws for Electrical Box Metal Outlet Box Grounding Screw**LJHYSD**$9.91**1 rev1y ago](https://www.amazon.com/dp/B0FG7ZF24R) [**4 Pack 18 Inch Trampoline Ground Anchors Screw in Earth Anchor Stakes kit with L-Shaped Brackets 20MM Spiral Swingset Anchors for Swing Set Tent Canopy Carport Sheds Playset Mobile Home**BeneLabel**$47.27**495 rev1y ago](https://www.amazon.com/dp/B0F12D1WF3)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Keltrion 8 Pcs 14 Ground Anchors Screw in Non-Rust Cast Aluminum Detachable Tent Stakes for Camping Tents Sand Trampoline Swing Sets and Sheds**Keltrion**$37.10**4.6★**▲ 221%**](https://www.amazon.com/dp/B0F1FS3RW9) [**Kyuionty 100 Pcs Green Grounding Screws 10#-32 x 3/8 Inch Combo Electrical Screws Slotted Hex Washer Head for Electrical Junction Box Metal Outlet Switch Boxes**Kyuionty**$6.85**5.0★**▲ 162%**](https://www.amazon.com/dp/B0FR2282MT) [**No Dig Ground Screw Anchor Spike 27 inch U Shaped Post Stake for Mailbox and Fence Includes Lag Bolts & Rebar Fits Standard 4x4 (3.5 X 3.5 Inch) Post.**LARNORJE**$106.37**4.4★**▲ 152%**](https://www.amazon.com/dp/B0CQM5HFZ9) [**Phopich Ground Anchor Screw in 4 Pack Spiral Trampoline Anchors with Nut and Tool Swing Set Anchors Tent Stakes High Wind Heavy Duty for Sheds Carports Mobile Home Orange**Phopich**$29.78**4.7★**▲ 139%**](https://www.amazon.com/dp/B0DDQ3FMCX) [**Aoserge 100 Pcs Green Ground Screws for Electrical Box 10-32 x 3/8 Inch Carbon Steel Hex Head Grounding Screws with Slotted Hex Washer Head Robust Corrosion-Resistant**Aoserge**$6.96**0.0★**▲ 133%**](https://www.amazon.com/dp/B0FX7WVGR8)
**~~View all trending →~~**
## **What buyers say about mailbox post anchor**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**22%
*“Good quality and very easy to install”*
**Strength**16%
*“Very strong”*
**Ease Of Use**12%
*“Easy peasy”*
**Assembly/Installation**9%
*“Easy to place”*
**Value For Money**8%
*“Worth the money”*
**Advertised Vs Actual Product**7%
*“Exceeded my expectations”*
**Durability**4%
*“Built well so far so good”*
**Size-Overall**4%
*“Fits well”*
**Functionality-Overall**2%
*“These ground anchors work great”*
**Efficiency**2%
*“Functions perfectly”*
### **What buyers complain about **
**Strength**13%
*“subsequent loss of strength”*
**Assembly/Installation**11%
*“did not work for my set up”*
**Flexibility**10%
*“These guys didnt bend going in”*
**Metal Quality**8%
*“Way over priced cheap pop metal not at all what I was expecting”*
**Durability**6%
*“Held through a tornado”*
**Quality-Overall**4%
*“Not as good as other ones Ive gotten”*
**Ease Of Use**4%
*“Difficult to use”*
**Advertised Vs Actual Product**4%
*“amazon ad was misleading”*
**Value For Money**4%
*“The 100 piece price, for effectively 1 screw, is ridiculous”*
**Size-Overall**4%
*“Not meant to hold larger items”*
### **Top return reasons **
**Size-Overall**42%
**Advertised Vs Actual Product**12%
**Functionality-Overall**10%
**Defective Material/Parts**5%
**Value For Money**4%
**Mounting**4%
**Strength**3%
**Mechanism Issues**3%
**Quality-Overall**2%
**Add-Ons/Attachments**2%
## **Common questions**
- **Is mailbox post anchor profitable to sell on Amazon United States?**
- The niche generates $193K/yr across 34 tracked products. 0 of 3 products launched in the last 360 days are still selling. 90-day search growth is +11.6%. Flapen's verdict: Worth a look (62/100).
- **How competitive is the mailbox post anchor niche?**
- 26 brands and 51 sellers compete. The top 5 products take 45% of clicks and top 5 brands hold 51% of demand.
- **What do buyers complain about in mailbox post anchor?**
- Top complaints mined from reviews: Strength, Assembly/Installation, Flexibility. The return rate is 1.8%.
- **When does demand for mailbox post anchor peak?**
- Demand peaks in Mar–Apr–May; the busiest month runs 3.1× the quietest.
- **What does it cost to enter the mailbox post anchor niche?**
- Listings span $3.51–$119.16; the average listing price is $34.82 (sweet spot $15–$100). The average incumbent carries 242 reviews — the moat a new listing must climb.
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