QSJ 300PCS #8 x 1/2'' Sheet Metal Screws 410 Stainless Steel Hex Washer Head Fast Self Tapping Screws with Screwdriver Bit Silver

QSJ 300PCS #8 x 1/2'' Sheet Metal Screws 410 Stainless Steel Hex Washer Head Fast Self Tapping Screws with Screwdriver Bit Silver

ASIN: B0C68X8MVF
Analysis Date: Jan 19, 2026 (re-analyzed Jan 19, 2026)

As an Amazon Associate I earn from qualifying purchases.

Review Analysis Results

A
Authenticity Grade
8.00%
Fake Reviews
4.13
Original Rating
4.00
Adjusted Rating

Analysis Summary

The overwhelming majority of these reviews appear genuine, with only one review showing clear signs of potential manipulation. Of the 15 reviews analyzed, 14 demonstrate authentic characteristics including specific personal use cases, balanced perspectives, and detailed experiences that align with real customer feedback. All reviews are verified purchases, which significantly increases their credibility. The product appears to be a legitimate sheet metal screw set that generally meets customer expectations.

Strong evidence of authenticity includes numerous reviews with specific personal applications: attaching gutter downspouts (R2Y4C98IPWLZPZ, R1FYLB9EOANFOC), hanging curtain rod holders (R2I47EM37T6TB7), installing gutter guards (R6T6KM3CKGFU7), and protecting wood from dog scratching (R14TWJYEMLOYN). Several reviews offer balanced perspectives, including complaints about packaging (R2Y4C98IPWLZPZ) and sizing issues (R1ANAZECMZPT0I, RU63TOQUDZTYY, R246YGR0SXVL36). The detailed comparison to another brand in R1BLFUNWRHUGDN and specific technical mentions like '410 stainless' and 'magnetic tool' further support authenticity.

The only concerning review is R29LXOPRL8IXYR, which contains vague, generic praise ('very handy good product fast delivery') with grammatical errors and lacks the specific personal context found in other reviews. However, even this review could simply be from a less articulate customer rather than a fake review. There are no patterns of repetitive phrases, marketing language, or coordinated manipulation across multiple reviews.

In summary, this review set appears overwhelmingly authentic with only minimal suspicion. The presence of negative reviews (including 1-star ratings), varied writing styles, specific use cases, and balanced feedback all point to genuine customer experiences. The single potentially suspicious review represents a small minority and lacks definitive proof of manipulation, making the overall fake percentage very low.

Key patterns identified in the review analysis include: Specific personal projects mentioned (gutters, curtain rods, roofing), Technical details provided (410 stainless, #8 size, magnetic tool), Balanced reviews with both praise and criticism.

Review Statistics

About Review Data Collection

We extract as much review data as Amazon makes available at the time of analysis. The amount may vary due to Amazon's rate limiting, regional restrictions, or other factors. Our analysis is based on the reviews we successfully collected.

1,141
Total Reviews on Amazon
15
Reviews Analyzed
14
Genuine Reviews
1
Fake Reviews
-0.13
Rating Difference

Want to analyze more reviews? Install the Null Fake Chrome extension to capture and analyze additional reviews as you browse Amazon.

Free, quick to install, and works on Chrome, Edge, Brave, and other Chromium browsers.

Price Analysis

This appears to be a budget-friendly bulk option for DIY or professional use. Given the 4.13/5 rating from over 1,100 reviews, it's likely a reliable choice in its price range. Look for prices under $25 with free shipping for the best value.

MSRP Assessment

Estimated MSRP: Unknown
Source: Unable to determine
Amazon Price: Unable to compare

Market Position

Positioning: Budget
Alternatives Range: $15-$35
Value: This product offers good value with 300 pieces of stainless steel screws including a driver bit, making it cost-effective for bulk projects compared to smaller packs.

Buying Tips

Best Time to Buy: Best prices often during home improvement sales (spring/summer) or Amazon Prime Day events.
Deal Indicators: Price below $20 for 300 pieces, free shipping, included driver bit, and high stainless steel grade (410).
Watch For: Watch for unusually low prices that might indicate counterfeit or lower-grade materials, and check shipping costs if not Prime eligible.
Price analysis generated by AI based on product category and market research. Actual prices may vary. Last analyzed: Jan 19, 2026

Understanding This Analysis

What does Grade A mean?

This product has excellent review authenticity. Our AI detected very few suspicious patterns, suggesting the vast majority of reviews are genuine customer experiences.

Adjusted Rating Explained

The adjusted rating (4.00 stars) represents what we estimate this product's rating would be if fake reviews were removed. This product's adjusted rating is lower than Amazon's displayed rating (4.13 stars), suggesting positive fake reviews may be inflating the score.

How We Detect Fake Reviews

Our AI analyzes multiple factors: language patterns (generic vs. specific), reviewer behavior (history, timing), temporal anomalies (review clusters), verification status, sentiment authenticity, and statistical outliers. No single factor determines a review is fake - we look at the combination of signals.

Important Limitations

No automated system is perfect. Sophisticated fake reviews can evade detection, and some genuine reviews may be incorrectly flagged. Use this analysis as one data point in your purchasing decision, not the only factor. Reading actual review content yourself is always valuable.

Share This Analysis

Learn More About Fake Reviews

How Our Analysis Works

Detailed explanation of our AI methodology

Spotting Fake Reviews Yourself

10 warning signs to watch for

Frequently Asked Questions

Common questions about our tool

Browse All Analyzed Products

See analysis results for other products

Related Sheet Metal Screws Products

QSJ 120PCS #8 x 1/2'' Sheet Metal Screws 410 Stainless Steel Hex Washer Head Fast Self Tapping Screws with Screwdriver Bit Silver

QSJ 120PCS #8 x 1/2'' Sheet Metal Screws 410 Stainless Steel...

Grade A 8.00% fake
Drenky Pack of 20 M6 x 16 mm Cylindrical Screw, Hexagon Cylindrical Screw, Stainless Steel A2 V2A, DIN 912 / ISO 4762, Full Thread

Drenky Pack of 20 M6 x 16 mm Cylindrical Screw, Hexagon Cyli...

Grade A 0.00% fake
A-M Gutter Guard - 1/2" #8 Stainless Steel Zip Screws - Self-Piercing Easy Start Tip - Mill Finish - 1/4" Hex Washer Head - Pack of 100 - Includes 1/4" Magnetic Hex Driver – for Gutter Install

A-M Gutter Guard - 1/2" #8 Stainless Steel Zip Screws - Self...

Grade A 8.00% fake
100 PCS #8 x 1 Flat Head Hardened Steel Deck Screws, Star/Torx Drive Multipurpose Partially Threaded Wood Screws with Ceramic Coating for Corrosion Resistance, T25 Star Bit Included by TPOHH

100 PCS #8 x 1 Flat Head Hardened Steel Deck Screws, Star/To...

Grade A 8.00% fake
Dianrui 1200 PCS Wood Screws Assortment Kit, Assorted Stainless Steel Screws M3/M4/M5/M6, ‌Phillips Drive Sheet Metal Self Tapping Screw Set Marine Grade (Round & Flat Head Screw) Length 1/4" to 2"

Dianrui 1200 PCS Wood Screws Assortment Kit, Assorted Stainl...

Grade B 12.00% fake
100 PCS #8 x 2 Flat Head Hardened Steel Deck Screws, Star/Torx Drive Multipurpose Wood Screws with Ceramic Coating for Corrosion Resistance, T25 Star Bit Included by TPOHH

100 PCS #8 x 2 Flat Head Hardened Steel Deck Screws, Star/To...

Grade B 12.00% fake
Analyze new product