---
title: "100mm Wood Screws — £66K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/diy-tools/100mm-wood-screws"
last_updated: "2026-07-31T08:55:56.692Z"
locale: en
meta:
description: "Niche score 48/100 · £66K/yr market · 42K searches/yr · £10.43 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 48/100 · £66K/yr market · 42K searches/yr · £10.43 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "100mm Wood Screws — £66K/yr Amazon UK Niche (2026) - Flapen"
---
# **100mm wood screws**
**Skip it**
A small market ($66K/yr) — this niche doesn't clear our bar today.
Market size 17Growth 51Conversion 97Competition 26Returns 99Price range 55Avg price 37Brand share 49Review moat 57Quality gap 19
**Returns**
**Incredible****0.2%**
return rate — above 5% kills the launch gate
**Conversion**
**Incredible****15.2%**
search→purchase rate — share of searches ending in a sale
**Review moat**
**Good****1,211.27**
avg incumbent reviews — the moat a new listing must climb
**Price range**
**Good****£4.05–£28.44**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Growth**
**Good****+21.6%**
90-day search growth — must beat 0% to launch
**Brand share**
**Okay****75%**
top-5 brand share — brands hold most of the demand
**Avg price**
**Okay****£10.43**
avg listing price — sweet spot $15–$100
**Competition**
**Okay****69%**
top-5 click share — leaders hold, buyers still browse
**Quality gap**
**Bad****4.7★**
avg incumbent rating — lower means beatable quality
**Market size**
**Bad****£66K**
£66K/yr · 42K searches
**Signals**[** 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, 100mm wood screws is a £66K/yr Amazon United Kingdom market (42K searches/yr). The top 5 brands hold 75% of demand. Demand peaks in Apr–May. Verdict: Skip it — 48/100.
Data updated Jul 22, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **100mm wood screws market data**
- **Units sold / yr**
- **6K–8K**
- avg 500–750/product
- **Revenue / yr**
- **£63K–£83K**
- units × avg price
- **Conversion rate**
- **15.2%**
- **Avg BSR**
- **#192**
- **Page quality**
- **0%**
- **Prime**
- **80%**
- **Sponsored**
- **67%**
- **Out of stock**
- **4.4%**
- **Avg brand age**
- **47 months**
- **Avg seller age**
- **178 days**
## **Competition & brand share**
The top 5 products take 69% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**10 **▼falling
**Sellers**
**52**
**Top-5 brand share**
**75%**
Top 20: 100%
**Top-5 click share**
**69%**
Top 20: 100%
**Open market**
**17%**
- BuildFix31% - Forgefix14% - GreHom12% - Astone11% - TIMBER WOLF8% - TIMCO7% - Open — no brand owns it (4 brands, 17%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +21.6% search growth over the last 90 days.
1K750Spike '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Apr, May · busiest ÷ quietest = 2.5×
[**Open Trend **](https://flapen.com/research/uk/diy-tools/100mm-wood-screws/trend)
## **Top 100mm wood screws search terms**
- **100mm wood screws**16K/yr+111.5%2.9% conv. - **wood screws 100mm**11K/yr+13.8%1.7% conv. - **100mm screws**11K/yr-29.7%1.3% conv. - **4 inch screws**4K/yr+11.0%0.9% conv. [**All search terms **](https://flapen.com/research/uk/diy-tools/100mm-wood-screws/search-terms)
## **Top 100mm wood 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%10%£7K20%£13K30%£20K40%£27K101001K10K 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 15 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**100mm Wood Screws 5mm PZ2 Fully Threaded Countersunk 100 Pack BuildFix**BuildFix**£10.46**4.5★20 rev](https://www.amazon.co.uk/dp/B0G5QDYDDL) [2**Packs of 1000-5.0 x 100mm (10 x 4) Professional TIMCO Solo Wood Screw POZI COUNTERSUNK - Free Next Working Day DELIVERY**GreHom**£28.44**4.6★137 rev](https://www.amazon.co.uk/dp/B07RG6VL3Y) [3**ForgeFast Elite Fast-Start Woodscrews | 5.0 x 100mm | Zinc Yellow | Box 100**Forgefix**£7.85**4.7★6,240 rev](https://www.amazon.co.uk/dp/B01LM1YIGM) [4**Astone General Purpose Wood Screw mini Packs (25 5 x 100mm)**Astone**£4.05**4.8★95 rev](https://www.amazon.co.uk/dp/B094486Z6C) [5**Timber Wolf TW50100 Woodscrews - 5.0 x 100mm - Box of 100 Zinc & Yellow (Gold)**TIMBER WOLF**£9.15**4.7★2,523 rev](https://www.amazon.co.uk/dp/B08WD9Y3PT)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Aigher Multi-Purpose Single Thread Woodscrews 5.0 x 100mm Zinc Yellow Passivated Box of 700 for Softwood Hardwood MDF and Chipboard**AIGHER**£15.12**0 rev2mo ago](https://www.amazon.co.uk/dp/B0H29FKT69) [**100mm Wood Screws 5mm PZ2 Fully Threaded Countersunk 100 Pack BuildFix**BuildFix**£10.46**20 rev7mo ago](https://www.amazon.co.uk/dp/B0G5QDYDDL) [**100mm Wood Screws 5mm PZ2 Partially Threaded Countersunk 100 Pack BuildFix**BuildFix**£10.66**12 rev7mo ago](https://www.amazon.co.uk/dp/B0G5QP4VNY) [**ASelected 150Pcs Wood Screws M5 x 100mm Screws for Wood Gold Timber Screw Long Screw for Chipboard Home Diy Constructing Repair**ASelected**£9.86**386 rev2y ago](https://www.amazon.co.uk/dp/B0D41ZVJ3G) [**Spectre PZ Compatible Wood Screw CSK ZYP 5.0 x 100mm Tub 300**Forgefix**£16.45**13 rev2y ago](https://www.amazon.co.uk/dp/B0CTKWRVJP)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Astone Wood Screw assortment (300pc: 5 x 70mm 4 x 50mm 40mm 30mm 3.5 x 25mm)**Astone**£5.81**4.5★**▲ 163%**](https://www.amazon.co.uk/dp/B07V9HYP19) [**Aigher Multi-Purpose Single Thread Woodscrews 5.0 x 100mm Zinc Yellow Passivated Box of 700 for Softwood Hardwood MDF and Chipboard**AIGHER**£15.12**0.0★**▲ 160%**](https://www.amazon.co.uk/dp/B0H29FKT69) [**Solo Professional Wood Screws POZI Countersunk - Timco (Pack of 50 100 200 500 1000) (50 3.5x40)**Cheapscrews**£4.59**4.7★**▲ 138%**](https://www.amazon.co.uk/dp/B0CQ2WS5DM) [**Solo Professional Wood Screws POZI Countersunk - Timco (Pack of 50 100 200 500 1000) (100 3x17)**Cheapscrews**£4.71**4.7★**▲ 100%**](https://www.amazon.co.uk/dp/B0CQ2VGV15) [**ASelected 150Pcs Wood Screws M5 x 100mm Screws for Wood Gold Timber Screw Long Screw for Chipboard Home Diy Constructing Repair**ASelected**£9.86**4.6★**▲ 75%**](https://www.amazon.co.uk/dp/B0D41ZVJ3G)
**~~View all trending →~~**
## **What buyers say about 100mm wood screws**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**29%
*“they are good quality screws”*
**Ease Of Use**19%
*“Easy to use”*
**Value For Money**17%
*“Value for money”*
**Advertised Vs Actual Product**11%
*“As described”*
**Strength**6%
*“they feel sturdy”*
**Durability**3%
*“durable with good threading”*
**Mounting**3%
*“this makes it easier to get screws in as there's less likelihood of the screws slipping”*
**Efficiency**3%
*“Work well for DIY”*
### **What buyers complain about **
**Value For Money**28%
*“They're not as cheap as some value screws”*
### **Top return reasons **
**Size-Overall**71%
**Smell**14%
**Value For Money**14%
## **Common questions**
- **Is 100mm wood screws profitable to sell on Amazon United Kingdom?**
- The niche generates £66K/yr across 15 tracked products. 0 of 3 products launched in the last 360 days are still selling. 90-day search growth is +21.6%. Flapen's verdict: Skip it (48/100).
- **How competitive is the 100mm wood screws niche?**
- 10 brands and 52 sellers compete. The top 5 products take 69% of clicks and top 5 brands hold 75% of demand.
- **What do buyers complain about in 100mm wood screws?**
- Top complaints mined from reviews: Value For Money. The return rate is 0.2%.
- **When does demand for 100mm wood screws peak?**
- Demand peaks in Apr–May; the busiest month runs 2.5× the quietest.
- **What does it cost to enter the 100mm wood screws niche?**
- Listings span £4.05–£28.44; the average listing price is £10.43 (sweet spot $15–$100). The average incumbent carries 1,211 reviews — the moat a new listing must climb.
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