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🔧 Seal it like a pro — never let a leak slow you down!
The Toolwiz 150PCS Copper Washer Assortment offers 15 metric sizes of 100% pure copper washers designed for superior sealing in plumbing, automotive, and industrial applications. Engineered to endure up to 350°C and 16MPa pressure, these corrosion-resistant washers come neatly organized in a portable case, making them an essential upgrade for professionals and DIYers aiming to prevent leaks and maintain high-performance connections.
| ASIN | B07G5FP73B |
| Best Sellers Rank | #31,663 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #8 in Sealing Washers |
| Brand | Toolwiz |
| Color | Copper |
| Compatible Groove Diameter | 16 Millimeters |
| Customer Reviews | 4.6 out of 5 stars 1,091 Reviews |
| Exterior Finish | Copper |
| Fastener Size | M14 |
| Fastener Type | Flat Washer |
| Finish Types | Natural Metallic |
| Grade Rating | Copper |
| Item Diameter | 17.5 Millimeters |
| Item Thickness | 1 Millimeters |
| Item Weight | 0.29 Kilograms |
| Manufacturer | kingcompany |
| Material | Copper |
| Material Type | Copper |
| Metal Type | Copper |
| Model | kupfer unterlegscheiben flach |
| Number of Pieces | 150 |
| Outside Diameter | 20 Millimeters |
| Part Number | ASR0271RD |
| Screw Head Style | Flat |
| Size Name | 5mm to 17.5mm |
| UPC | 696177827450 |
| Unit Count | 1 Count |
| Washer Type | Flat |
M**N
happy
seems to be a nice set happy with it
R**T
Nice and cheap to have around if you work on your own vehicles
Nice and cheap to have around if you work on your own vehicles
R**Y
Lots of sizes
I only needed two, but ended up useing this kit 3 more times. I will be needing it for another vehicle soon. Worth the price, and it sure is handy having them in the shop already.
C**O
Wide Range of sizes
This Sealing Washers Assortment Set is a great addition to any toolbox. Having a wide range of sizes ensures I’m always prepared for different projects. The quality of the washers is solid, and they work perfectly for sealing purposes. Highly recommend this set for anyone needing reliable washers.
L**S
Good Quality Copper Washers
Great quality for use on auto oil drain plugs. Good value n quality. Replaced power-steering that was leaking with 1 copper washer on each side of pressure line. Thumbs up!
B**M
Copper crush washer - metric - 150 ct 15 sizes
I bought these hoping they would fit the brake line banjo bolt for my 1973 Yamaha RD350. They did fit, just a little more material. Nothing wrong there. I have not installed these yet, but I do not see any issues. I did take sandpaper to a washer to see if they were coated or actual copper. From sanding, I still see copper. May need to break one in half - but no concerns about them being coated from that assessment. *Mine arrived sorted correctly. Other buyers said the washers became disorganized. It may be they have updated their packaging with that plastic cover (see photo) to help. Will buy again - glad to have many more for future projects.
A**R
They did their job
They did their job on a 97 toyota 4runner fuel injector rail
P**D
Annoying assortment
If you spend a decent amount of time around vehicles you'll realize this kit only offers a few sizes that are actually used: 12 and 14. And you'll quickly use those up and realize that some of the other 12 and 14mm sizes are the ones that are way too small in OD. You could use them, but it wouldn't be proper as they wouldn't support the washer-head of the bolt enough. Then there's the weird sizes: 15? 16? 16.5? 17.5? Then it's maddening that there's no 18?! Basically, you buy this kit thinking it'll have the sizes you need, and then after a while you realize there are lots of sizes that simply don't get used, and also the lack of 18mm is no good. If you want this for automotive use I would NOT recommend it.
Trustpilot
2 months ago
2 days ago