mxuteuk 2040-Piece Metric Screw and Bolt Assortment, M2–M6

The mxuteuk 2040-piece metric screw and bolt assortment combines hex socket button-head machine screws with cross-slotted round-head bolts in sizes M2 to M6. Its broad size range and storage box suit general repair and workshop stock, but confirm the exact dimensions and quantities needed for a particular job.

At a glance

Combines two head styles and two listed size ranges in one assortment.
The listing describes a plastic storage box with explanatory drawings for sorting and identification.
The stated applications include home, automotive, precision machinery, toys, electronics, 3D printers and shop use.

Price

$23.99Save 20%

Reference price: ~~$29.99~~

Price checked: Nov 13, 2026

View offer Ahead of Black FridayExplore the selection

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Pros and cons

Pros

The listed mix of M2 through M6 sizes covers both smaller machine screws and larger bolts.
Two drive styles offer options for projects that use hex socket and cross-slotted fasteners.
The stated plastic storage box can help keep assorted fasteners organized.

Technical specifications

12 specifications

Identity
Brand	mxuteuk
Fastener type	Bolt
Part number	G138-BK-2040PCS

Materials and finish
Material listed	Carbon Steel
Colour	Black-button Head

Assortment
Total pieces	2040
Listed size range	2040PCS M2-M6
Hex socket button-head machine screws	1012 PCS M2/M3/M4/M5 Hex Socket Button Head Machine Screws
Cross-slotted round-head bolts	1028 M3/M4/M5/M6 Cross Slotted Round Head Bolts
Hex socket screw sizes and lengths	M2/M3/M4/M5 (4mm-20mm) hex socket head cap metric screw assortment
Round-head bolt sizes	M3/M4/M5/M6 Cross Slotted Round Head Bolts
Head style	hex socket button

What to know before buying

Listing details to confirm

The listing describes the screw portion as M2/M3/M4/M5, 4mm–20mm, but its overall size range is M2–M6 because the cross-slotted bolts are listed as M3/M4/M5/M6. It does not provide quantities by individual size or the length breakdown for the bolt assortment, so confirm those details against the job before buying. The listing also uses both screw and bolt descriptions for the assortment, and calls its material high-quality metal in one feature while the details specify carbon steel. These are listing inconsistencies, not confirmed product defects. Its corrosion-resistance statements are manufacturer claims.

Who is it for?

A good fit for

Home and workshop users who want a mixed metric fastener assortment for common repairs.
Hobbyists working with projects such as toys, electronics or 3D printers who need several listed metric sizes and head styles.

Less suited to

Buyers who need an exact per-size inventory or specified bolt lengths, since the listing does not give those breakdowns.
Projects that require a confirmed alloy grade or independently established corrosion performance.

mxuteuk 2040-Piece Metric Screw and Bolt Assortment, M2–M6 · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.4 / 5 · 48 ratings

5 stars76%76%
4 stars5%5%
3 stars9%9%
2 stars5%5%
1 star5%5%

The supplied evidence includes aggregate ratings but no written customer feedback, so it does not establish what buyers liked or disliked or why ratings varied. The distribution is mostly five-star, with some lower ratings across the other star categories. Treat that as a broad, limited signal rather than evidence about fit, material performance or assortment accuracy. For a project needing particular screw lengths or quantities, the listing’s missing size-by-size breakdown matters more than the overall rating.

Frequently asked questions

What sizes are included?

The listing gives M2, M3, M4 and M5 for the hex socket button-head screws, and M3, M4, M5 and M6 for the cross-slotted round-head bolts. It does not break down quantities by size.

How many pieces are in the assortment?

The listing states 2040 pieces, comprising 1012 hex socket button-head screws and 1028 cross-slotted round-head bolts.

What material is listed?

The details list carbon steel. A feature also describes the fasteners more generally as metal, so the more specific stated material is carbon steel.

Does it come with a storage box?

The product description says the fasteners come in a plastic storage box with explanatory drawings.