500Pcs M4 Screw Kit, Black M4 Screws (7 Sizes 6-30mm),...
Good for: Buyers willing to read the details before deciding
Watch out for: suspicious-trend-reversal
Last analyzed: February 2026
Total Reviews
432
On Amazon
Verified
88%
Good
Amazon Rating
4.8
Original rating
Savinoo Rating
4.1
Adjusted rating
Our Recommendation
BE CAUTIOUS - Read individual reviews carefully, especially 1-star and 3-star reviews, before purchasing.
Analysis Summary
- MEDIUM RISK (Score: 77/100) 500Pcs M4 Screw Kit, Black M4 Screws (7 Sizes 6-30mm),... has some concerning review patterns. Major Issues Found: 80% of 5-star reviews are very short (under 15 words).
- Genuine 5-star reviews usually explain why 500Pcs M4 Screw Kit, Black M4 Screws (7 Sizes 6-30mm),... is excellent. Additional Concerns: Rating trend showed significant improvement from 3.0 to 4.8 stars. Positive Indicators: 88% of reviews are from verified purchases, which is good..
Customer Reviews from Amazon
Most Helpful Review
"Had all the popular sizes i needed , good kit ."
sparta
Exactly as described
pfasjr
Had all the popular sizes i needed , good kit .
cm reviews
Excellent M4 screw kit, exactly as described with a good variety. They are easy to…
Excellent M4 screw kit, exactly as described with a good variety. They are easy to use with the included Alan wrench, and everything is durable and good quality. They are very useful and functional if you need M4 sized screws like I did. The size is true and exactly what I ordered. I am happy with this kit, and I HIGHLY recommend them to anyone!billy nolan
Worked well and packed well
roy smith
Great verity in sizes. Is what I needed for a project
thomas
Helpful if you don’t know the size of screw you need. I used these to…
Helpful if you don’t know the size of screw you need. I used these to wall mount some LG surround sound speakers when none of the screws that came with the mounting kit I bought worked. These worked great.What Customers Talk About
Commonly Praised
Commonly Complained
Review Quality Analysis
Review quality helps identify authentic customer feedback. Longer, detailed reviews (50+ words) typically indicate genuine experiences, while high percentages of short reviews (under 20 words) may suggest incentivized or fake feedback.
Average Words
35
Moderate detail
Long Reviews
8%
⚠ Low detail
Short Reviews
23%
✓ Low brief reviews
Review Length Distribution
Authentic vs Brief Reviews
Average Word Count Gauge
Benchmark: 30 words = moderate, 50+ words = detailed & authentic
35
avg. words per review
Interpretation: Review quality appears within normal range for this product category.
Review Velocity
Review velocity tracks how quickly reviews are posted. Steady, gradual accumulation is natural, while sudden spikes or bursts (20+ reviews in a single day) may indicate incentivized campaigns or coordinated activity.
Average Per Day
0.05
Natural pace
Max in One Day
3
Normal range
Variable Velocity Pattern
Review posting rate varies over time. This may be linked to promotions, product launches, or seasonal events.
Rating Breakdown
This chart shows how customers rated 500Pcs M4 Screw Kit, Black M4 Screws (7 Sizes 6-30mm),.... Products with authentic reviews typically show a bell curve with most ratings in the 3–4 star range. A heavily polarized distribution — many 5★ and 1★ with few middle ratings — can be worth investigating further.
Key Findings
80% of 5-star reviews are very short (under 15 words). Genuine 5-star reviews usually explain why the product is excellent.
Rating trend showed significant improvement from 3.0 to 4.8 stars.
These findings suggest this is a trustworthy product.
Looks legit — check on AmazonWarning Flags
suspicious-trend-reversal
Not sure about this product?
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Our analysis is based on 432 reviews.
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How does this compare?
This product scores 77/100 — above average among analyzed products.
Check on Amazon