HELIFOUNER 600-Piece Black Zinc-Plated Steel Flat Washer Assortment

Black Zinc-Plated Steel: HELIFOUNER's 600-piece flat washer assortment covers nine metric sizes from M2 to M12. The mix of sizes and labeled storage case suit repairs or projects that use several metric fastener sizes, though the supplied quantities vary by size.

At a glance

Nine metric sizes span M2 through M12, with size-specific quantities ranging from 10 to 100 pieces.
The listing describes a transparent, durable box with size labels for sorting and identification.
Flat washers are intended to spread load at threaded fastenings, with applications described for household appliances, automotive, marine, shop and building projects.

Price

$6.49Save 50%

Reference price: ~~$12.98~~

Price checked: Nov 12, 2026

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Pros and cons

Pros

The broad M2-to-M12 range can cover jobs involving several metric fastener sizes.
A labeled case is claimed to make size identification and storage more convenient.
The package list specifies quantities for each size, useful when planning around uneven stock.

Technical specifications

11 specifications

Identity
Brand	HELIFOUNER
Model	HELIFOUNER----Black---Washer---600

Materials and protection
Material listed	steel
Finish	Zinc
Color	Black

Washer details
Type	Flat
Thickness	0.3 millimeters
Thread sizes	M2 M2.5 M3 M4 M5 M6 M8 M10 M12
Piece count	600
Listed compatibility	bolts, nuts, screws
Listed applications	automotive, electrical, marine

What to know before buying

Listing details to confirm

The listing is inconsistent about material composition: it calls the washers steel and alloy steel, while the description also says carbon steel. It lists overall thickness as 0.3 millimeters, but size-specific package dimensions give different thicknesses. Confirm the material and dimensions for the sizes you need before purchase.

Who is it for?

A good fit for

People stocking assorted metric flat washers for home, automotive, electrical or marine projects.
Buyers who want a single case covering sizes M2 through M12 and can use different quantities of each size.

Less suited to

Anyone who needs a uniform quantity of every size or a specific confirmed material grade and thickness without checking the listing details.

HELIFOUNER 600-Piece Black Zinc-Plated Steel Flat Washer Assortment · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.6 / 5 · 230 ratings

5 stars77%77%
4 stars16%16%
3 stars5%5%
2 stars1%1%
1 star1%1%

Customer feedback describes the washers as functional and good quality, with value also viewed positively. That reported experience may matter for routine projects across the listed metric sizes, but it does not confirm the listing's conflicting material or thickness details.

Positive themes

Customer feedback highlights perceived quality and functionality.
Some customer feedback characterizes the kit as decent value.

Frequently asked questions

Which washer sizes are listed?

The assortment lists M2, M2.5, M3, M4, M5, M6, M8, M10 and M12.

Are the pieces divided equally among the nine sizes?

No. The package list gives 100 pieces each for M2, M2.5, M3 and M4, 60 each for M5 and M6, 50 for M8, 20 for M10 and 10 for M12.

What should I verify before buying?

The listing gives conflicting material descriptions and a general thickness that differs from the size-specific dimensions. Verify the material and dimensions for your intended size.