Kadrick Metric Screw Assortment, 2000PCS Metric Bolt Assortment Kit M2 M3 M4 M5 Machine Screws with Lock & Flat Washers, Grade…
Kadrick
Best for
Best metric-only
Amazon rating
Amazon aggregate, one input among many in the Verdict Score
Based on 1 trusted source
Current price
$18.99
Updated May 17, 2026 · 1 min read
Sources behind this verdict
6 reviewers weighted by source trust
The consensus
What reviewers found
Synthesized across the trust-weighted source mix below.
Across the reviewers we read, this Kadrick 2,000-piece kit is the metric-focused pick that comes up most often in 3D printing communities. The walmart.com and amazon.com listings document four sizes (M2, M3, M4, M5) in hex-socket button-head form with lock and flat washers, in Grade 10.9 alloy steel — a noticeably harder spec than the Grade 2 hardware in most generalist combo kits. Verified-purchase volume sits at roughly 1,775 ratings averaging 4.6 stars.
What reviewers liked
- Grade 10.9 alloy steel per the amazon.com and walmart.com listings — harder than the Grade 2 spec in most generalist kits
- M2 inclusion is rare and specifically called out as useful in r/3Dprinting and r/BambuLab threads
- Hex-socket button heads are the standard form for 3D-printed enclosures and small mechanical assemblies
- Lock washers and flat washers included for each size
Where it falls short
- Metric-only — no SAE coverage at all, so not a general household kit
- A facebook.com user comment in the signals flags small-head stripping risk on similar kits
- Caps out at M5; users needing M6 or M8 will still need a second kit
- r/BambuLab thread surfaces boltdepot.com as a preferred alternative for users who want exact sizing rather than an assortment
Across the reviewers we read, this Kadrick 2,000-piece kit is the metric-focused pick that comes up most often in 3D printing communities. The walmart.com and amazon.com listings document four sizes (M2, M3, M4, M5) in hex-socket button-head form with lock and flat washers, in Grade 10.9 alloy steel — a noticeably harder spec than the Grade 2 hardware in most generalist combo kits. Verified-purchase volume sits at roughly 1,775 ratings averaging 4.6 stars.
r/3Dprinting and r/BambuLab community threads in our data repeatedly point shoppers toward M2–M6 assortment kits in exactly this form factor, with one r/BambuLab thread suggesting boltdepot.com as an alternative for users who want to spec their own sizes. A facebook.com user comment in the signal set flags that smaller heads on these kits can strip if over-driven, which is consistent with hex-socket button heads in general and worth noting. For 3D printer builds, electronics enclosures, and small-machine repair, the consensus tilts positive; for woodworking or anything needing larger threads, this isn't the right tool.
- 【SMALL PRECISION SCREWS – IDEAL FOR 3D PRINTING & DIY】 Includes M2 / M3 / M4 / M5 metric screws, specially designed for 3D printing, electronics repair, RC models, and precision DIY projects. ⚠️ These are small-size screws, NOT suitable for heavy-duty or large mechanical use. Please check sizes carefully before purchasing.
- 【WIDE SIZE COVERAGE – MOST COMMON SIZES IN ONE KIT】 Covers the most frequently used metric sizes: M2 (4/8/12/16mm), M3 (6/8/12/16mm), M4 & M5 (8/12/16/20mm) with standard ISO/DIN threads. One complete kit eliminates repeated purchases and ensures you always have the right size on hand.
- 【MOST FREQUENTLY USED SIZES FOR 3D PRINTING & DIY】 This kit includes M2, M3, M4, and M5 — the most commonly used metric screw sizes for 3D printing, robotics, RC models, and precision DIY projects. With a balanced 1:1 ratio of screws, nuts, washers, and lock washers, it provides a complete fastening solution for a wide range of assembly needs.
- 【CLEARLY ORGANIZED BOX + SIZE LABELS + INCLUDED WRENCHES】 All parts are stored in a durable, compartmentalized case with clear, easy-to-read labels for quick identification. Includes M2–M5 hex keys (Allen wrenches), making installation faster and more convenient right out of the box.
- 【10.9 GRADE ALLOY STEEL – DURABLE & PRECISE THREADS】 Made from high-strength 10.9 grade alloy steel, featuring clean threads, excellent durability, and reliable fastening performance. Backed by Kadrick’s strict quality control and a 24-month warranty for worry-free use.
I was looking to buy a metric screw assortment kit, like some of the ones that you see on Amazon (search “metric screws assortment kit”) that ...
Go on Boltdepot.com and build your own. Its cheap, and you can get more options than you knew existed. I bulk ordered and I still have screws 2 ...
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