---
title: "Locking Pin — $57K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/automotive/locking-pin"
last_updated: "2026-08-10T16:14:25.717Z"
locale: en
meta:
description: "Niche score 53/100 · $57K/yr market · 117K searches/yr · $9.95 avg price. A small market ($57K/yr) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 53/100 · $57K/yr market · 117K searches/yr · $9.95 avg price. A small market ($57K/yr) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Locking Pin — $57K/yr Amazon US Niche (2026) - Flapen"
---
# **locking pin**
**Worth a look**
Shows low returns (1.0%), but a small market ($57K/yr) keeps it on the watch list.
Market size 14Growth 56Conversion 58Competition 59Returns 95Price range 65Avg price 33Brand share 80Review moat 65Quality gap 18
**Returns**
**Great****1.0%**
return rate — above 5% kills the launch gate
**Brand share**
**Great****55%**
top-5 brand share — no brand owns this niche
**Review moat**
**Good****887.17**
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**
**Good****50%**
top-5 click share — leaders hold, buyers still browse
**Conversion**
**Good****4.9%**
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**
**Bad****4.7★**
avg incumbent rating — lower means beatable quality
**Market size**
**Bad****$57K**
$57K/yr · 117K searches
**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, 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 ~~](https://flapen.com/research/methodology)
## **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**
**30**
**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.
3K2KSpike '25 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.7×
[**Open Trend **](https://flapen.com/research/us/automotive/locking-pin/trend)
## **Top locking pin search terms**
- **locking pin**33K/yr+19.0%2.1% conv. - **lock pin**22K/yr+11.2%2.7% conv. - **locking pins**19K/yr+30.8%2.6% conv. - **1/4 hitch pin**9K/yr+60.0%7.3% conv. - **lock pins**11K/yr+22.7%3.2% conv. - **hitch pins 1/4**6K/yr+117.7%8.5% conv. - **wire lock pin**9K/yr+32.4%3.5% conv. - **1/4 pin**6K/yr+30.7%6.3% conv. - **shaft locking pin**3K/yr+24.6%2.1% conv. [**All search terms **](https://flapen.com/research/us/automotive/locking-pin/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.
0%5%$3K10%$6K15%$9K20%$11K1101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
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
[1**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**$5.58**4.8★74 rev](https://www.amazon.com/dp/B0G1HKT51S) [2**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**$6.69**4.4★877 rev](https://www.amazon.com/dp/B07N1JG3L2) [3**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**$5.59**4.8★99 rev](https://www.amazon.com/dp/B0G1RJ2X98) [4**Eoppen 220Pcs Cotter Pin Assortment Kit - 304 Stainless Steel 13 Sizes Cotter Pins & R Clips Cotter Pin Set for Hitch Pin Lock Systems**Eoppen**$8.55**4.7★993 rev](https://www.amazon.com/dp/B0D6TWZDZR) [5**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**$8.79**4.8★1,688 rev](https://www.amazon.com/dp/B07VF61LB1)
**~~View all top sellers →~~**
### **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**$5.59**99 rev6mo ago](https://www.amazon.com/dp/B0G1RJ2X98) [**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**$5.58**74 rev8mo ago](https://www.amazon.com/dp/B0G1HKT51S) [**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**$21.68**4 rev9mo ago](https://www.amazon.com/dp/B0FV3KRN58) [**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**$9.91**53 rev1y ago](https://www.amazon.com/dp/B0FFSZ8HTH) [**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**$4.73**175 rev1y ago](https://www.amazon.com/dp/B0DPKCMXRG)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**YOLMOOAT 2Pcs Premium Square Trailer Pin 1/4 x 2.75(6.3mm x 70mm) Trailer Coupler Pin Upgrade Hitch Pins Trailer Hitch Pin for Farm Trailers Towing Lawn**yolmooat**$3.70**4.7★**▲ 162%**](https://www.amazon.com/dp/B0DPKFRL9H) [**CURT 25012 Trailer Coupler Pin with 12-Inch Chain 1/4-Inch Diameter x 2-3/4-Inch Long**CURT**$3.32**4.8★**▲ 126%**](https://www.amazon.com/dp/B001GN6YTG) [**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**$5.59**4.8★**▲ 112%**](https://www.amazon.com/dp/B0G1RJ2X98) [**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**$5.58**4.8★**▲ 111%**](https://www.amazon.com/dp/B0G1HKT51S) [**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**$21.68**5.0★**▲ 106%**](https://www.amazon.com/dp/B0FV3KRN58)
**~~View all trending →~~**
## **What buyers say about locking pin**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**21%
*“Great quality and arrived on time”*
**Value For Money**16%
*“Great value for the money”*
**Ease Of Use**11%
*“Easy to use”*
**Advertised Vs Actual Product**10%
*“As advertised”*
**Locking Mechanism**7%
*“They have good locking feature to keep from falling off”*
**Size-Overall**7%
*“Great fit”*
**Strength**7%
*“Works great and holds strong”*
**Durability**5%
*“Nice durable easy to use”*
**Efficiency**4%
*“Works great”*
**Security**1%
*“So far theyve stayed secure and feel sturdy”*
### **What buyers complain about **
**Durability**14%
*“Immediately broken”*
**Ease Of Use**12%
*“They were VERY hard to connect”*
**Quality-Overall**10%
*“These are bad quality and super defective”*
**Size-Overall**8%
*“they did not fit my boat trailer”*
**Locking Mechanism**8%
*“The top of the locking mechanism popped off of every one as soon as I used them”*
**Advertised Vs Actual Product**7%
*“Not as shown in the photos”*
**Strength**6%
*“Some even break off the pin part because they're so strong”*
**Material Quality**3%
*“Cheap material and quality”*
**Thickness**2%
*“Down side: If the material the pin passes through is too thick”*
**Functionality-Overall**2%
*“It does not work”*
### **Top return reasons **
**Size-Overall**71%
**Functionality-Overall**5%
**Advertised Vs Actual Product**4%
**Locking Mechanism**3%
**Defective Material/Parts**3%
**Value For Money**2%
**Magnetic Strength/Adsorption**2%
**Mechanism Issues**2%
**Thin**2%
**Thickness**1%
## **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.
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