mailbox post anchor
Worth a lookShows a sweet-spot price point ($34.82 avg), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Avg price
Incredible$34.82avg listing price — sweet spot $15–$100
Review moat
Great242.29avg incumbent reviews — the moat a new listing must climb
Brand share
Great51%top-5 brand share — no brand owns this niche
Returns
Great1.8%return rate — above 5% kills the launch gate
Conversion
Great7.3%search→purchase rate — share of searches ending in a sale
Price range
Good$3.51–$119.16cheapest to priciest tracked listing — scored on the share inside $15–$100
Competition
Good45%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
Okay4.6★avg incumbent rating — lower means beatable quality
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
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.Peak months: Mar, Apr, May · busiest ÷ quietest = 3.1×
Top mailbox post anchor search terms
- ground screws36K/yr
- ground screw26K/yr
- grounding screws4K/yr
- green ground screws3K/yr
- grounding screw3K/yr
- grounding screws for electrical box3K/yr
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.
All 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
IDEAL Electrical 774044R Combination Grounding Screws (100 Pack)
Ideal Industries$8.054.8★213 rev
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$8.804.8★96 rev
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$34.594.6★618 rev
Gardner Bender GGS-1512R Grounding Screws Green 12 Pack
Gardner Bender$3.514.7★419 rev
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$37.104.6★261 rev
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$6.960 rev
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$6.852 rev
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$8.4516 rev
100 PCS Ground Screw Electrical Panel Screws Ground Screws for Electrical Box Metal Outlet Box Grounding Screw
LJHYSD$9.911 rev
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$47.27495 rev
Trending
90-day click momentumKeltrion 8 Pcs 14 Ground Anchors Screw in Non-Rust Cast Aluminum Detachable Tent Stakes for Camping Tents Sand Trampoline Swing Sets and Sheds
Keltrion$37.104.6★
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$6.855.0★
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$106.374.4★
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$29.784.7★
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$6.960.0★
What buyers say about mailbox post anchor
What buyers praise and complain about, mined from review topics.What buyers love
“Good quality and very easy to install”
“Very strong”
“Easy peasy”
“Easy to place”
“Worth the money”
“Exceeded my expectations”
“Built well so far so good”
“Fits well”
“These ground anchors work great”
“Functions perfectly”
What buyers complain about
“subsequent loss of strength”
“did not work for my set up”
“These guys didnt bend going in”
“Way over priced cheap pop metal not at all what I was expecting”
“Held through a tornado”
“Not as good as other ones Ive gotten”
“Difficult to use”
“amazon ad was misleading”
“The 100 piece price, for effectively 1 screw, is ridiculous”
“Not meant to hold larger items”
Top return reasons
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.