---
title: "M4 Screws — £170K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/diy-tools/m4-screws"
last_updated: "2026-07-31T14:08:20.327Z"
locale: en
meta:
description: "Niche score 57/100 · £170K/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 57/100 · £170K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:title": "M4 Screws — £170K/yr Amazon UK Niche (2026) - Flapen"
---
# **m4 screws**
**Worth a look**
Shows a sweet-spot price point ($20.27 avg), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 35Growth 25Conversion 72Competition 81Returns 75Price range 12Avg price 88Brand share 82Review moat 83Quality gap 35
**Avg price**
**Great****£20.27**
avg listing price — sweet spot $15–$100
**Review moat**
**Great****339.56**
avg incumbent reviews — the moat a new listing must climb
**Brand share**
**Great****53%**
top-5 brand share — no brand owns this niche
**Competition**
**Great****34%**
top-5 click share — an open shelf
**Returns**
**Great****2.0%**
return rate — above 5% kills the launch gate
**Conversion**
**Good****6.6%**
search→purchase rate — share of searches ending in a sale
**Market size**
**Okay****£170K**
£170K/yr · 127K searches
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Growth**
**Bad****-0.5%**
90-day search growth — must beat 0% to launch
**Price range**
**Bad****£2.50–£696.17**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Signals**[** No Dominant Brand**](https://flapen.com/research/niches?market=uk&signal=no_dominant_brand "Top brand's click share < 20%") [** Low Review Barrier**](https://flapen.com/research/niches?market=uk&signal=low_review_barrier "Top brand's reviews < 500")
According to Flapen's Amazon United Kingdom niche tracking, m4 screws is a £170K/yr Amazon United Kingdom market (127K searches/yr). The top 5 brands hold 53% of demand. Verdict: Worth a look — 57/100.
Data updated Jul 22, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **m4 screws market data**
- **Units sold / yr**
- **8K–10K**
- avg 100–250/product
- **Revenue / yr**
- **£162K–£203K**
- units × avg price
- **Conversion rate**
- **6.6%**
- **Avg BSR**
- **#173**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **94%**
- **Out of stock**
- **5.4%**
- **Avg brand age**
- **28 months**
- **Avg seller age**
- **174 days**
## **Competition & brand share**
Clicks spread well past the top 5 (34% combined) — an open shelf where new products get seen.
**Brands**
**31 **▲rising
**Sellers**
**37**
**Top-5 brand share**
**53%**
Top 20: 93%
**Top-5 click share**
**34%**
Top 20: 77%
**Open market**
**42%**
- JinZeYou15% - BATENGKEJI15% - YOUYIDUN9% - SZSLMY7% - Moqinai7% - AMLOOPH6%
## **Demand & seasonality**
Weekly Amazon search volume, last 66 weeks — -0.5% search growth over the last 90 days.
3K2K seasonMayJunJulAugSepOctNovDecJanFebMarAprMayJun
No pronounced peak months · busiest ÷ quietest = 1.3×
[**Open Trend **](https://flapen.com/research/uk/diy-tools/m4-screws/trend)
## **Top m4 screws search terms**
- **m4 bolts**46K/yr-2.9%6.2% conv. - **m4 screws**47K/yr-8.6%3.8% conv. - **m4 nuts and bolts**9K/yr+80.2%5.3% conv. - **m4 bolts and nuts**5K/yr+13.9%4.8% conv. - **m4 bolt**5K/yr+3.9%3.4% conv. - **m4 machine screws**3K/yr+6.5%3.1% conv. - **m4 screw**4K/yr-13.8%3.3% conv. [**All search terms **](https://flapen.com/research/uk/diy-tools/m4-screws/search-terms)
## **Top m4 screws 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%3%£5K6%£10K9%£15K12%£20K1101001K10K 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**760 Pcs M4 Bolts and Nuts Set Nuts and Bolts Set Black Hex Socket Button Head Cap Screws with Washers Assorted Pan Head Screws (M4)**JinZeYou**£5.91**4.6★146 rev](https://www.amazon.co.uk/dp/B0DLGJ81N8) [2**425 Pcs M4 Bolts and Nuts Set M4 Nuts and Bolts Set Round Head Hexagon Socket Screws and Washers Black Hex Socket Button Head Cap Machine Screws Kit**BATENGKEJI**£6.08**4.6★819 rev](https://www.amazon.co.uk/dp/B0DQ3R9WN6) [3**800 Pcs M4 Nuts and Bolts Set Hex Socket Head Cap Screws Bolts and Nuts Set Stainless Steel Machine Screws Bolts Set Assorted Nuts and Bolts with Lock & Flat Washers Assortment for DIY Repair**SZSLMY**£7.08**4.6★138 rev](https://www.amazon.co.uk/dp/B0DPX16KJ9) [4**AMLOOPH Cabinet & Door Handle Screw Assortment 60pack M4 Bolts 25-50MM**AMLOOPH**£4.91**4.4★190 rev](https://www.amazon.co.uk/dp/B0D2PD3YNR) [5**Vwoqiy 600 Pcs M4 Screws Set Pan Head Machine Screws Bolts and Nuts and Washers Assortment Kit Assorted Galvanized Round Cross Pan Head Bolts and Nuts Sets DIN 7985 (silver 600)**Vwoqiy**£7.04**4.6★2,018 rev](https://www.amazon.co.uk/dp/B0D2Y8YL8L)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**mawmuaw M4 Bolts 30 Pcs Pan Head Machine Screws M4x6 mm Phillips Round Head Bolts Zinc Steel Screw Fully Threaded with Bit for DIY Furniture Machinery Construction Engineering**mawmuaw**£3.15**1 rev3mo ago](https://www.amazon.co.uk/dp/B0GJ3YRKVX) [**mawmuaw M4 Bolts 30 Pcs Pan Head Machine Screws M4x5 mm Phillips Round Head Bolts Zinc Steel Screw Fully Threaded with Bit for DIY Furniture Machinery Construction Engineering**mawmuaw**£3.22**2 rev3mo ago](https://www.amazon.co.uk/dp/B0GJ3RD675) [**IEAWISL 276PCS M4 Nut and Bolt 6-30mm Hex Socket Cap 304 SS for DIY**IEAWISL**£5.31**36 rev6mo ago](https://www.amazon.co.uk/dp/B0GGHJXX4N) [**872PCS M4 Screw Set M4 Bolts and Nuts Set Stainless Steel Countersunk Hex Socket Screws and Nuts Kit Metric Machine Screws Assortment with Washers & Spring Washers Fastener Set with Wrench**Moqinai**£5.94**8 rev8mo ago](https://www.amazon.co.uk/dp/B0G2MB1GYZ) [**732 Pcs M4 Screw Set M4 Bolts and Nuts Set Black Carbon Steel Hex Socket Cap Screws Nuts and Washers Assortment Machine Screws Kit High-Strength Threaded Fasteners Set for DIY & Repairs**Moqinai**£6.49**8 rev8mo ago](https://www.amazon.co.uk/dp/B0G2MNLBXV)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**mawmuaw M4 Bolts 30 Pcs Pan Head Machine Screws M4x5 mm Phillips Round Head Bolts Zinc Steel Screw Fully Threaded with Bit for DIY Furniture Machinery Construction Engineering**mawmuaw**£3.22**5.0★**▲ 231%**](https://www.amazon.co.uk/dp/B0GJ3RD675) [**IEAWISL 276PCS M4 Nut and Bolt 6-30mm Hex Socket Cap 304 SS for DIY**IEAWISL**£5.31**4.2★**▲ 230%**](https://www.amazon.co.uk/dp/B0GGHJXX4N) [**mawmuaw M4 Bolts 30 Pcs Pan Head Machine Screws M4x6 mm Phillips Round Head Bolts Zinc Steel Screw Fully Threaded with Bit for DIY Furniture Machinery Construction Engineering**mawmuaw**£3.15**5.0★**▲ 216%**](https://www.amazon.co.uk/dp/B0GJ3YRKVX) [**YOOPIN 680PCS Nuts and Bolts Set M3/M4/M5 Phillips Round Head Screws Nuts and Washers Carbon Steel Hex Nut and Bolt Assortment Set for DIY Projects Furniture Installation and Parts Fixing**YOOPIN**£6.23**4.3★**▲ 101%**](https://www.amazon.co.uk/dp/B0FGTRMX6L) [**688 Pcs M4 Bolts Set M4 Screws Set Assorted Nuts and Bolts Set Black Round Head Hex Socket Button Head Machine Screws with Nuts Flat Washers & Spring Washers**HuangXinyu**£5.18**4.8★**▲ 88%**](https://www.amazon.co.uk/dp/B0FQNYF6C3)
**~~View all trending →~~**
## **What buyers say about m4 screws**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**29%
*“Good quality little kit”*
**Mounting**20%
*“Handy kit for TV mounting with plenty included”*
**Value For Money**18%
*“Good value”*
**Size-Overall**13%
*“Perfect size”*
**Ease Of Use**4%
*“are very easy to use”*
**Advertised Vs Actual Product**4%
*“as described”*
**Material Quality**3%
*“While the material is OK for light corrosion resistance”*
**Add-Ons/Attachments**2%
*“All the attachments”*
**Correct Contents**2%
*“Goid selection of parts”*
**Compatibility-Overall**1%
*“These sets are compatible with pretty much every bracket you can buy”*
### **What buyers complain about **
**Size-Overall**27%
*“Beware - these Allen bolts are not sized as expected”*
**Strength**15%
*“box a little weak, easy cracked”*
**Compatibility-Overall**10%
*“Not good for Samsung”*
**Quality-Overall**10%
*“Poor quality case”*
**Assembly/Installation**8%
*“try as I might I couldn't fine the correct bolts or spacers to hang it correctly”*
**Instructions/User Manual/Troubleshooting**5%
*“The computer monitor manual didn't even mention the screws or even their size”*
**Ease Of Use**3%
*“if they're very very similar such as 8 and 10 mm it becomes rather difficult”*
### **Top return reasons **
**Size-Overall**79%
**Defective Material/Parts**6%
**Compatibility-Overall**4%
**Mounting**4%
**Advertised Vs Actual Product**3%
**Quality-Overall**2%
**Functionality-Overall**1%
**Thickness**1%
**Strength**1%
**Leak-Proof**0%
## **Common questions**
- **Is m4 screws profitable to sell on Amazon United Kingdom?**
- The niche generates £170K/yr across 48 tracked products. 0 of 20 products launched in the last 360 days are still selling. 90-day search growth is -0.5%. Flapen's verdict: Worth a look (57/100).
- **How competitive is the m4 screws niche?**
- 31 brands and 37 sellers compete. The top 5 products take 34% of clicks and top 5 brands hold 53% of demand.
- **What do buyers complain about in m4 screws?**
- Top complaints mined from reviews: Size-Overall, Strength, Compatibility-Overall. The return rate is 2.0%.
- **When does demand for m4 screws peak?**
- Demand is steady year-round — the busiest month runs 1.3× the quietest.
- **What does it cost to enter the m4 screws niche?**
- Listings span £2.50–£696.17; the average listing price is £20.27 (sweet spot $15–$100). The average incumbent carries 340 reviews — the moat a new listing must climb.
## **Related niches in DIY & Tools**
- 68 [**cardboard cutter**](https://flapen.com/research/uk/diy-tools/cardboard-cutter)£343K/yr+30.6%**Worth a look**- 68 [**door canopy**](https://flapen.com/research/uk/diy-tools/door-canopy)£202K/yr+187.7%**Worth a look**- 68 [**fence post repair**](https://flapen.com/research/uk/diy-tools/fence-post-repair)£359K/yr-8.2%**Worth a look**- 68 [**cat window guard**](https://flapen.com/research/uk/diy-tools/cat-window-guard)£98K/yr+413.1%**Worth a look**- 68 [**sun shade**](https://flapen.com/research/uk/diy-tools/sun-shade)£202K/yr+187.7%**Worth a look**- 69 [**brass hose connector**](https://flapen.com/research/uk/diy-tools/brass-hose-connector)£66K/yr+122.8%**Worth a look**[**All DIY & Tools niches **](https://flapen.com/research/uk/diy-tools)