VerdictAI
#5 in Best Fastener Assortment Sets

wugongshan 1080 Pcs Screws Bolts and Nuts Assortment Kit, Metric Machine Screws and Nuts and Flat Washers, M3/M4/M5/M6 Cross…

Brand: wugongshan

Best for

Best metric-only

Amazon rating

★★★★★4.5(1,603)

Amazon aggregate, one input among many in the Verdict Score

Verdict scoreGood
71/ 100

Current price

$13.98

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Updated Jun 27, 2026 · 1 min read

wugongshan 1080 Pcs Screws Bolts and Nuts Assortment Kit, Metric Machine Screws and Nuts and Flat Washers, M3/M4/M5/M6 Cross…

The consensus

What reviewers found

Synthesized across the trust-weighted source mix below.

For buyers working strictly in metric, this wugongshan 1,080-piece kit is the most-reviewed dedicated metric option here, holding a 4.5 average across roughly 1,603 verified-purchase ratings. It focuses on M3 through M6 round-head machine screws with matching nuts and flat washers, and reviewers value the depth of coverage in the small-to-mid metric range common in electronics, furniture, and hobby builds. The 4.5 average sits slightly below the category leaders, and customer notes follow the typical pattern of common sizes depleting first.

What reviewers liked

  • Deep coverage of common M3–M6 sizes in one kit
  • Large verified-purchase base (~1,603 ratings)
  • Machine screws bundled with matching nuts and washers

Where it falls short

  • Average rating (4.5) trails the category leaders slightly
  • Limited to small-to-mid metric sizes; no larger bolts
  • No expert testing available to verify thread quality

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Across the reviews

Synthesis · not our verdict

For buyers working strictly in metric, this wugongshan 1,080-piece kit is the most-reviewed dedicated metric option here, holding a 4.5 average across roughly 1,603 verified-purchase ratings. It focuses on M3 through M6 round-head machine screws with matching nuts and flat washers, and reviewers value the depth of coverage in the small-to-mid metric range common in electronics, furniture, and hobby builds.

The 4.5 average sits slightly below the category leaders, and customer notes follow the typical pattern of common sizes depleting first. As with every candidate in this pool, no independent lab or specialist-community testing was supplied, so material and thread-quality claims rest on buyer feedback. Within the metric-only niche, it remains the best-supported choice on review volume.

Key specs

Source: Amazon listing
Premium Material
Our mixed round head cross head screws and nuts and flat washers are made of outstanding metal material with smooth edges, which offers good corrosion resistance, rust resistance, and oxidation resistance, ensure long time using.
Easy to Use
These assorted nuts and bolts and washers sets are easy to use. Our screw thread is smooth, clean, and accurate. And the compact thread is not easy to out of shape and slid in the process of rolling.
Easy to Store
All M3 M4 M5 M6 cross pan head machine screws and bolts and nuts and washers are stored in a separate girds plastic storage box, easy to store, use, carry, and get it, perfect to replace broken and missing screws.
Wide Applications
This package includes a variety of popular sizes of screws, nuts, and washers, commonly used in machinery, furniture, car, motorcycle repair, environmental protection equipment, 3D printing equipment, communication equipment, power facilities, electronic products, ship assembly, and DIY inventions, and more.
Package Includes
You will receive 16 kinds of screws, in the size of M3*6mm, M3*10mm, M3*14mm, M3*20mm, M4*10mm, M4*20mm, M4*25mm, M4*30mm, M5*20mm, M5*30mm, M5*40mm; m6*10, m6*20, m6*30, m6*40; 4 kinds of nuts, and 4 kinds of washers; a total of 900g/1080 pcs, meet your different needs in daily life.(Please check the product details for the quantity corresponding to the specific size.)

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