Can you plaster over these?

I used these washers to fix insulation panels to the underside of the roof joists in our loft - so no plastering involved. They were excellent for what I needed. The most common use for these washers is to fix insulation panels to the outside of a building, which would then be rendered over. The rendering would normally be at least 15mm thick, so would cover the washers. If you are using the washers to fix panels internally they would probably be ok, but it is important to ensure they are tightly screwed to prevent movement, and the plaster thickness is also sufficient to cover the washers/screws - say 12mm. Ensure the correct screws are used, e.g. proprietary plasterboard screws, which will not discolour the plaster over time. Hope this helps. J

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Load Spreading 60mm Polypropylene washers for Fixing and Supporting All Types of Soft to Medium Insulation Panels and Sheets – 100PCS

Load Spreading 60mm Polypropylene washers for Fixing and Supporting All Types of Soft to Medium Insulation Panels and Sheets – 100PCS

Product ID: 68597454

Details

Exterior finish
Natural
Fastener size
4 5 or 6mm
Material
Polypropylene
Outside diameter
60 Millimetres
Washer type
Flat

📏60mm diameter for optimal load spread

⚙️4.2mm low profile for sleek, flush fixing

🇬🇧UK-made precision with advanced tech

E£ 4162

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Description

🔧 Elevate your insulation game with precision and durability!

ULTRA LOW PROFILE DESIGN - Only 4.2mm thickness when fixed ensures minimal bulk and clean finish
ENGINEERED FOR PERFECT FIT - Compatible with 4-6mm screws, ideal 5mm recommended for secure fastening
ECO CONSCIOUS MANUFACTURING - 100% recyclable, UK-made with cutting-edge production technology for consistent quality
DURABLE VIRGIN POLYPROPYLENE - Tough, chemical-resistant material built to last and maintain rigidity
VERSATILE INSULATION COMPATIBILITY - Supports EPS, XPS, Celotex, Kingspan & more soft to medium foam boards effortlessly

These 60mm polypropylene washers, manufactured in the UK by Hawksworth Engineering, provide a low-profile, durable solution for fixing and supporting a wide range of soft to medium insulation panels. Designed for screws sized 4-6mm, they ensure secure, balanced fastening with chemical-resistant virgin polypropylene material. Each pack contains 100 recyclable washers engineered for consistent quality and optimal load distribution.

Specifications

ASIN	B07B1RL4WY
Best Sellers Rank	94,699 in DIY & Tools ( See Top 100 in DIY & Tools ) 679 in Washers
Brand Name	hawkeng
Colour	Natural
Compatible Groove Diameter	6E+1 Millimeters
Country Of Origin	United Kingdom
Customer Reviews	4.6 4.6 out of 5 stars (725)
Exterior Finish	Natural
Fastener Size	4, 5, or 6mm
Fastener Type	Flat Washer
Finish Types	Natural
Grade Rating	standard
Item Diameter	60 Millimetres
Item Thickness	5.2 Millimetres
Item Weight	4.3 Grams
Manufacturer	Hawksworth Engineering
Manufacturer Part Number	INS60PPNAT100
Material Type	Polypropylene
Number Of Items	100
Number of Pieces	100
Outside Diameter	60 Millimetres
Screw Head Style	Round
Set Name	100
Size	60mm x 5.2mm
Thread Size	5 mm
Unit Count	100.0 count
Washer Application	construction
Washer Compatibility	screws
Washer Type	Flat

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E£ 4162

Duties & taxes included

In stock

Sold byAmazon EGYPTDelivered 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 EGYPT.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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