What kind of projects are these screws and washers good for?

These screws and washers are great for light renovation projects, such as fixing bathroom backsplash, insulation, or plastic sheeting. They are affordable and easy to install, making them an economical choice for most home renovation needs.

Does the thickness of the washers affect the performance?

As long as they are not over-tightened, washers will hold their shape and get the job done. If you need more strength, consider using two washers on top of each other, or go with a thicker washer depending on the situation.

How good are these products for the price?

They are very cost-effective, especially for projects that require a lot of use. They are inexpensive and available in large quantities, which can help you save money. They are an economical and practical choice for light renovation work.

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200 PCS Tile Backer Board Screws and Washers Kit, 3.5x30mm Backer Board Screws with 35mm Metal Washers, Easy Fix Screw and Washer Set for Insulation and Backer Board Installation

200 PCS Tile Backer Board Screws and Washers Kit, 3.5x30mm Backer Board Screws with 35mm Metal Washers, Easy Fix Screw and Washer Set for Insulation and Backer Board Installation

Product ID: 635158630

Details

Exterior finish
Galvanized
Fastener size
35mm
Material
galvanized
Outside diameter
3.5
Washer type
Flat

🔩200 pcs kit for bulk projects

🛠️3.5x30mm self-tapping screws

🛡️Galvanized steel corrosion-resistant

Bs.679

Duties & taxes included

In stock

Sold byAmazon BoliviaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Bolivia.

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Description

🔧 Elevate your installation game with screws and washers that mean business!

BUILT TO LAST - Premium galvanized steel resists rust and deformation, ensuring your installation stands the test of time.
MAXIMIZED ADHESION - Perforated washer design boosts adhesive contact, reducing delamination and enhancing surface durability.
VERSATILE FIXING POWER - Includes 100 screws and 100 washers, perfectly sized for insulation, backer boards, gypsum, and more.
FLUSH FINISH EVERY TIME - Countersunk washers pull screws flush for a perfectly flat surface, ideal for seamless tile and board layering.
PROJECT READY BULK PACK - 200-piece set means you’re always stocked for professional-grade installations without last-minute runs.

This 200-piece kit features 3.5x30mm galvanized steel self-tapping screws paired with 35mm countersunk metal washers designed for tile backer board and insulation installation. Engineered for durability and flush finishes, the perforated washers enhance adhesive bonding while resisting corrosion, making this set a versatile, reliable choice for professional and DIY projects alike.

Specifications

Asin	B0D3LMKKBX
Best Sellers Rank	54,763 in DIY & Tools (See Top 100 in DIY & Tools) 374 in Washers
Brand Name	UTXN
Colour	6-Hole Gasket
Compatible Groove Diameter	3.6 Centimeters
Country Of Origin	China
Customer Reviews	3.9 3.9 out of 5 stars (66) 3.9 out of 5 stars
Eu Spare Part Availability Duration	10 Years
Exterior Finish	Galvanized
Fastener Size	35mm
Fastener Type	screw
Finish Types	Glossy
Included Components	Washers
Item Diameter	3.5 Centimetres
Item Dimensions	20 x 10 x 2 centimetres
Item Type Name	Tile Backer Board Washers with Screws
Manufacturer	UTXN
Manufacturer Part Number	ALM0043_2405
Material Type	galvanized steel
Metal	Alloy Steel
Model Number	ALM0043_2405
Number Of Items	200
Number Of Pieces	200
Outside Diameter	3.5 Centimetres
Screw Head Style	countersunk
Set Name	Tile Backer Board Screws and Washers Kit (200 Piece)
Size	1.37 inches
Thread Size	35mm
Unit Count	200.0 count
Washer Application	construction
Washer Compatibility	screws
Washer Type	Flat

Reviews

User

Tiler

Very good product,highly recommended

4.04.2026

User

Great product

Good product, does what it says on the tin 👍🏼

1.02.2026

User

Good product allow for more screws.

They did the job on naas board but I had around 15 screws in a 100 pack unusable due to the Phillips head being distorted.

4.08.2025

User

Useless!

Very poor quality. 2 of first 3 used sheared off.

2.03.2026

User

Good quality and value

23.12.2025

User

excellent

easy to use

30.04.2025

User

Exactly what I needed at a good price.

Do the job they are meant to.

6.09.2024

User

Screws

Some of the screw heads twist off but mostly ok

14.09.2025

User

Scam do no buy, this is rubbish

Vevor very poor quality, this is a scam

12.09.2026

User

Würde immer wieder bei Amazon bestellen

Pünktlich zugestellt.Prima

25.06.2026

User

Quantité trompeuse

Quantité trompeuse : 100 rondelles + 100 vis

26.09.2025

User

Fiesenträger

Bin mit dem Produkt sehr zufrieden!

18.03.2025

User

Pas sérieux

Seulement 100 pièces reçues !

4.03.2025

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Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Abdullah B.

Great price for an authentic product. Fast international shipping too!

3 weeks ago

Ayesha M.

The product exactly matches the description. Very satisfied with my purchase.

5 days ago

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Bs.679

Duties & taxes included

In stock

Sold byAmazon BoliviaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Bolivia.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Zainab N.

Fantastic and great service. Shipping was faster than expected.

1 week ago

Ayesha M.

The product exactly matches the description. Very satisfied with my purchase.

5 days ago

View all Trustpilot reviews