Is locking pin profitable to sell on Amazon United States?

The niche generates $57K/yr across 29 tracked products. 3 of 4 products launched in the last 360 days are still selling. 90-day search growth is +29.0%. Flapen's verdict: Worth a look (53/100).

How competitive is the locking pin niche?

23 brands and 30 sellers compete. The top 5 products take 50% of clicks and top 5 brands hold 55% of demand.

What do buyers complain about in locking pin?

Top complaints mined from reviews: Durability, Ease Of Use, Quality-Overall. The return rate is 1.0%.

When does demand for locking pin peak?

Demand is steady year-round — the busiest month runs 1.7× the quietest.

What does it cost to enter the locking pin niche?

Listings span $3.32–$36.45; the average listing price is $9.95 (sweet spot $15–$100). The average incumbent carries 887 reviews — the moat a new listing must climb.

locking pin

Worth a look

Shows low returns (1.0%), but a small market ($57K/yr) keeps it on the watch list.

Returns

Great1.0%

return rate — above 5% kills the launch gate

Brand share

Great55%

top-5 brand share — no brand owns this niche

Review moat

Good887.17

avg incumbent reviews — the moat a new listing must climb

Price range

Good$3.32–$36.45

cheapest to priciest tracked listing — scored on the share inside $15–$100

Competition

Good50%

top-5 click share — leaders hold, buyers still browse

Conversion

Good4.9%

search→purchase rate — share of searches ending in a sale

Growth

Good+29.0%

90-day search growth — must beat 0% to launch

Avg price

Okay$9.95

avg listing price — sweet spot $15–$100

Quality gap

Bad4.7★

avg incumbent rating — lower means beatable quality

Market size

Bad$57K

$57K/yr · 117K searches

Signals No Dominant Brand Low Review Barrier

According to Flapen's Amazon United States niche tracking, locking pin is a $57K/yr Amazon United States market (117K searches/yr). The top 5 brands hold 55% of demand. Verdict: Worth a look — 53/100.

Data updated Jul 8, 2026 · scored weekly · How we score niches

locking pin market data

Units sold / yr: 6K–8K; avg 100–250/product
Revenue / yr: $60K–$80K; units × avg price
Conversion rate: 4.9%
Avg BSR: #40
Page quality: 0%
Prime: 100%
Sponsored: 93%
Out of stock: 0.2%
Avg brand age: 41 months
Avg seller age: 180 days

Competition & brand share

The top 5 products take 50% of clicks — established leaders, but buyers still shop beyond them.

Brands

23 falling

Sellers

Top-5 brand share

55%

Top 20: 97%

Top-5 click share

50%

Top 20: 91%

Open market

38%

NRJSSCC17%
VTurboWay15%
Aurdeayi8%
PINAILER8%
Eoppen7%
ZOROLE7%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +29.0% search growth over the last 90 days.

No pronounced peak months · busiest ÷ quietest = 1.7×

Open Trend

Top locking pin search terms

locking pin33K/yr +19.0%2.1% conv.
lock pin22K/yr +11.2%2.7% conv.
locking pins19K/yr +30.8%2.6% conv.
1/4 hitch pin9K/yr +60.0%7.3% conv.
lock pins11K/yr +22.7%3.2% conv.
hitch pins 1/46K/yr +117.7%8.5% conv.
wire lock pin9K/yr +32.4%3.5% conv.
1/4 pin6K/yr +30.7%6.3% conv.
shaft locking pin3K/yr +24.6%2.1% conv.

All search terms

Top locking pin 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.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 24 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

10 Pack NRJSSCC Trailer Coupler Pin and Locking Pin 2-1/8x1/4 Trailer Hitch Pin Heavy Duty Shaft Locking and Wire Lock Pins Hardware Pins for Farm Trailers Towing Lawn Garden Carbon Steel

NRJSSCC$5.584.8★74 rev

2 Pack Quick Release Pin Diameter 1/4(6.3mm) Overall Length 3(76mm) Usable Length 2.4(61mm) Full 316 Stainless Steel Bimini Top Pin Marine Hardware

VTurboWay$6.694.4★877 rev

Aurdeayi 8PC Trailer Hitch Pin Standard 1/4 Inch Hitch Pins Strong Trailer Coupler Pin Safety Lock Easy Hook Up Locking Retainer Perfect for Tractor RV Farm Yard Equipment

Aurdeayi$5.594.8★99 rev

Eoppen 220Pcs Cotter Pin Assortment Kit - 304 Stainless Steel 13 Sizes Cotter Pins & R Clips Cotter Pin Set for Hitch Pin Lock Systems

Eoppen$8.554.7★993 rev

10 PCS Square Pto Pin Shaft Locking Pin 1/4 pin Hitch pin Wire Lock Pin Safety Coupler Pin 1/4 x 2-3/4for PTO Farm Lawn Hitches and Garden (10 PCS Trailer Pins)

Comonc$8.794.8★1,688 rev

Newest

by launch date

Aurdeayi 8PC Trailer Hitch Pin Standard 1/4 Inch Hitch Pins Strong Trailer Coupler Pin Safety Lock Easy Hook Up Locking Retainer Perfect for Tractor RV Farm Yard Equipment

Aurdeayi$5.5999 rev

6mo ago

10 Pack NRJSSCC Trailer Coupler Pin and Locking Pin 2-1/8x1/4 Trailer Hitch Pin Heavy Duty Shaft Locking and Wire Lock Pins Hardware Pins for Farm Trailers Towing Lawn Garden Carbon Steel

NRJSSCC$5.5874 rev

8mo ago

SHENLIU 40 PCS Square Trailer Hitch Pin 1/4 Inch Diameter Safety Shaft Locking Pin Wire Trailer Pins Carbon Steel Trailer Hitch for Farm Lawn Garden Wagons Towing

SHENLIU$21.684 rev

9mo ago

2Pack Locking Pins Trailer Pin with Anti-Lost Rope Ring Premium Trailer Hitch Pin Hitch Locking Pin Professional Trailer Coupler Pins for Farm Lawn Garden Wagons Towing Size 1/4 x 3.2(6.3mm x 80mm)

BADAO$9.9153 rev

1y ago

YOLMOOAT 2Pcs Premium Square Trailer Pin 1/4 x 4(6.3mm x 100mm) Trailer Coupler Pin Upgrade Hitch Pins Trailer Hitch Pin for Farm Trailers Towing Lawn

yolmooat$4.73175 rev

1y ago

What buyers say about locking pin

What buyers praise and complain about, mined from review topics.

What buyers love

Quality-Overall21%

“Great quality and arrived on time”

Value For Money16%

“Great value for the money”

Ease Of Use11%

“Easy to use”

Advertised Vs Actual Product10%

“As advertised”

Locking Mechanism7%

“They have good locking feature to keep from falling off”

Size-Overall7%

“Great fit”

Strength7%

“Works great and holds strong”

Durability5%

“Nice durable easy to use”

Efficiency4%

“Works great”

Security1%

“So far theyve stayed secure and feel sturdy”

What buyers complain about

Durability14%

“Immediately broken”

Ease Of Use12%

“They were VERY hard to connect”

Quality-Overall10%

“These are bad quality and super defective”

Size-Overall8%

“they did not fit my boat trailer”

Locking Mechanism8%

“The top of the locking mechanism popped off of every one as soon as I used them”

Advertised Vs Actual Product7%

“Not as shown in the photos”

Strength6%

“Some even break off the pin part because they're so strong”

Material Quality3%

“Cheap material and quality”

Thickness2%

“Down side: If the material the pin passes through is too thick”

Functionality-Overall2%

“It does not work”

Top return reasons

Size-Overall71%

Functionality-Overall5%

Advertised Vs Actual Product4%

Locking Mechanism3%

Defective Material/Parts3%

Value For Money2%

Magnetic Strength/Adsorption2%

Mechanism Issues2%

Thin2%

Thickness1%

Common questions

Is locking pin profitable to sell on Amazon United States?: The niche generates $57K/yr across 29 tracked products. 3 of 4 products launched in the last 360 days are still selling. 90-day search growth is +29.0%. Flapen's verdict: Worth a look (53/100).
How competitive is the locking pin niche?: 23 brands and 30 sellers compete. The top 5 products take 50% of clicks and top 5 brands hold 55% of demand.
What do buyers complain about in locking pin?: Top complaints mined from reviews: Durability, Ease Of Use, Quality-Overall. The return rate is 1.0%.
When does demand for locking pin peak?: Demand is steady year-round — the busiest month runs 1.7× the quietest.
What does it cost to enter the locking pin niche?: Listings span $3.32–$36.45; the average listing price is $9.95 (sweet spot $15–$100). The average incumbent carries 887 reviews — the moat a new listing must climb.