Kwikset 660 Deadbolt Lock, Matte Black Round Exterior Keyed Front Entry Door, Pick Resistant SmartKey Rekey Security, Single Cylinder Dead Bolt

Kwikset 660 Deadbolt Lock, Matte Black Round Exterior Keyed Front Entry Door, Pick Resistant SmartKey Rekey Security, Single Cylinder Dead Bolt

ASIN: B0FTGRFQ8N
Analysis Date: Sep 18, 2026

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Review Analysis Results

B
Authenticity Grade
15.00%
Fake Reviews
5.00
Original Rating
4.60
Adjusted Rating

Analysis Summary

The vast majority of these reviews appear genuine, with only a small number showing potential signs of low-effort or generic feedback. All reviews are marked as verified purchases, which significantly increases the likelihood of authenticity. The overall sentiment is consistently positive, which is normal for a well-regarded product like Kwikset SmartKey deadbolts, and the specific praise for the rekeying feature and ease of installation aligns with known product characteristics.

Several reviews provide strong genuine signals. For example, one reviewer shares a personal story about keys being stolen and needing to rekey, which explains their motivation and demonstrates real-world use. Another mentions replacing the rest of their knobs and deadbolts with the same brand, indicating a genuine customer decision. Others highlight specific features like the smart key function, the inclusion of two keys, and the ability to match existing keys, all of which are detailed and product-specific.

A few reviews are very brief and generic, such as 'Would buy again' or 'Good, but I requested that by mistake.' These lack detail and could be considered low-effort, but they do not exhibit clear manipulation patterns like marketing language or repetitive phrasing. The review that says 'Good, but I requested that by mistake' is ambiguous and may indicate a genuine mistake rather than a fake review. Overall, these short reviews are not strongly indicative of fraud.

In summary, the reviews are overwhelmingly genuine, with only minor concerns about a few overly brief entries. The consistent mention of specific features and personal experiences supports authenticity. The product appears to be a reliable, easy-to-install deadbolt with a highly valued rekeying feature, as reflected in the genuine reviews.

Key patterns identified in the review analysis include: Frequent mention of ease of installation, Praise for the SmartKey rekeying feature, Verified purchase status across all reviews.

Review Statistics

108
Total Reviews on Amazon
-0.40
Rating Difference
Editor's Analysis

Choosing a Deadbolt: Security, Finish, and SmartKey Convenience

When selecting a deadbolt like the Kwikset 660, you're balancing security, durability, and ease of use. This single-cylinder model features Kwikset's SmartKey rekey technology, allowing you to rekey the lock yourself in seconds, and a matte black finish that resists fingerprints and complements modern door hardware.

Key Considerations Before Buying

  • Security rating: Look for ANSI/BHMA Grade 1 or 2 certification; the Kwikset 660 is Grade 3, which is suitable for residential use but may not withstand heavy forced entry as well as higher grades.
  • Rekey capability: SmartKey technology lets you rekey the lock to a new key without removing the cylinder, a major convenience if you lose keys or move into a new home.
  • Finish durability: Matte black finishes can show wear over time; consider powder-coated or PVD finishes for better resistance to chipping and fading, especially on exterior doors.

What Our Analysts Recommend

Check for solid metal construction (not plastic internals), a hardened steel bolt, and a secure mounting plate. The Kwikset 660 uses a zinc exterior and meets basic residential security needs, but higher-end models may offer additional pick resistance and anti-drill features.

Deadbolts Market Context

Market Overview

The deadbolt market is saturated with options ranging from budget-friendly builder-grade models to high-security smart locks. Traditional keyed deadbolts like the Kwikset 660 remain popular for their simplicity and reliability, especially among homeowners seeking a no-frills, mechanical solution.

Common Issues

Many deadbolts suffer from poor weather resistance, leading to sticking or corrosion, and some low-cost models use weak metals that can be easily pried or drilled. Additionally, improper installation is a frequent problem, compromising security even with high-quality locks.

Quality Indicators

A quality deadbolt will have a solid feel, smooth key operation, and a bolt that extends at least one inch. Look for ANSI/BHMA certification, anti-pick and anti-bump features, and a manufacturer warranty that covers finish and mechanical defects.

Review Authenticity Insights

Grade B Interpretation

With a Grade B authenticity rating and an estimated 15% fake reviews, the Kwikset 660's review section is mostly reliable but includes some suspicious activity. The adjusted rating of 4.60/5 still indicates strong overall satisfaction, but be aware that a small portion of reviews may be incentivized or generic.

Trust Recommendation

Focus on reviews that include detailed installation experiences, long-term durability feedback, and photos. Verified purchase reviews with specific pros and cons are more trustworthy than short, overly enthusiastic ones. Given the 15% fake rate, cross-reference with other sources like home improvement forums.

Tips for Reading Reviews

When reading reviews for deadbolts, prioritize those that mention security features, ease of rekeying, and finish wear over time. Look for patterns in complaints, such as difficulty installing on certain door thicknesses, and note whether reviewers have used the product for months or years.

Expert Perspective

The Kwikset 660 is a solid entry-level deadbolt that offers the convenience of SmartKey rekeying and a stylish matte black finish at an affordable price. While it meets basic residential security standards, its Grade 3 rating means it's not the most robust option against determined intruders. The high adjusted rating suggests most buyers are satisfied, but the 15% fake review estimate warrants some caution.

Purchase Considerations

Consider your security needs: if you live in a high-crime area, you may want a Grade 1 deadbolt with additional anti-pick features. Also, check door prep compatibility—Kwikset 660 fits standard 2-1/8-inch bore holes, but some doors may require modification. The SmartKey feature is a major plus for renters or frequent movers.

Comparing Alternatives

Compare with other deadbolts in the same price range, such as Schlage B60N or Kwikset 980, which offer higher security ratings and similar features. Reading expert reviews and consumer reports will help you weigh the trade-offs.

Price Analysis

The Kwikset 660 Deadbolt typically retails for $25-$35, and with a perfect 5-star rating, it offers solid value. Since the current Amazon price is unknown, aim to buy below $30, ideally during a sale event. Avoid paying above $35 unless you need it urgently.

MSRP Assessment

Estimated MSRP: $25-$35
Source: Brand typical pricing
Amazon Price: Unable to compare

Market Position

Positioning: Mid-range
Alternatives Range: $15-$50
Value: Kwikset's SmartKey rekey feature and 5-star rating justify a slight premium over basic deadbolts, but it remains affordable compared to high-security brands.

Buying Tips

Best Time to Buy: Best time to buy is during Amazon Prime Day (July), Black Friday (November), or home improvement sales in spring/fall.
Deal Indicators: A good deal would be under $25, especially if it includes free shipping or a bundle with other Kwikset products.
Watch For: Watch for third-party sellers pricing above $35; ensure it's sold by Amazon or a reputable seller to avoid counterfeit or damaged goods.
Price analysis generated by AI based on product category and market research. Actual prices may vary. Last analyzed: Sep 18, 2026

Understanding This Analysis

What does Grade B mean?

This product has good review authenticity with minor concerns. While most reviews appear genuine, we detected some patterns that warrant mild caution.

Adjusted Rating Explained

The adjusted rating (4.60 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 (5.00 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.

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