Specifications
Finish :
Bright(Uncoated)
Substrate :
Hollow Brick
Payment Terms :
T/T,L/C,PayPal,Western Union
Wing Count :
4 Wings
Screw Size :
M5
Model Number :
Universal Wall Plugs
Delivery Time :
3-7 days for stock, 10-20 days for production
Connection Method :
Bolt Joint
Use Case :
Curtain Rods
Corrosion Proof :
100% Rust-Free
Drill Hole :
8mm
Price :
USD 0.03-0.20 / Piece
Measurement System :
Metric
Lock Type :
Knot-Style
Color :
White, Grey, OEM
Place of Origin :
Hebei, China
Material :
Nylon PA6
Anchor Length :
35mm
Brand Name :
CangRui
Certification :
ISO9001
MOQ :
100 Pieces
Supply Ability :
1000000 Pieces per Month
Packaging Details :
Inner poly bag or small box, export corrugated carton with custom marking available
Fastener Type :
Four-Wing Sleeve Anchor
Description

Knot-Style Nylon Cavity Wall Plug Four-Wing Expansion Anchor for Curtain Rod Hollow Brick Mounting


Product Description

The M5 x 35mm Nylon Four-Wing Knot Expansion Wall Plug is a medium-duty plastic fastening solution designed for curtain rod brackets, window hardware, and blind fixtures on hollow brick and cavity wall surfaces. The anchor features a four-wing knot-expansion mechanism made from durable PA6 nylon. When the M5 screw is driven into the anchor body, the wings fold outward inside the hollow brick cavity, creating a knot-style mechanical lock that grips the inner wall surface firmly. Installation is simple: drill an 8mm hole into the hollow brick, insert the anchor flush, position your curtain rod bracket, and drive the M5 screw through the bracket into the anchor until the wings deploy and resistance confirms a solid lock.

Features

Rust-Proof Nylon Construction - Manufactured from 100% rust-proof PA6 nylon, this anchor maintains its structural integrity indefinitely in window areas where condensation and humidity are common environmental factors.
Knot-Style Cavity Lock - The distinctive knot-expansion design causes the four wings to fold outward and interlock behind the hollow brick face, creating a secure anchor point that resists the repeated tension of curtain operation.
Easy Pre-Drill Installation - Clean 8mm pre-drilled hole preparation ensures precise anchor placement with minimal substrate damage, while the ribbed body prevents spinning during screw driving for reliable wing deployment.
Wide Wing Bearing Area - The four-wing design expands to an 18mm diameter behind the wall, distributing pull-out forces across a generous bearing area for stable long-term curtain rod support.

Technical Parameters

General Information
Product Name Nylon Four-Wing Knot Expansion Wall Plug UW Series
Model Number UW-M535
Screw Diameter M5
Anchor Length 35mm
Wing Count 4 Wings
Material Nylon PA6 / Polyamide Engineering Plastic
Color Options White, Grey, Blue, Natural (customizable)
Anchor Structure Four-wing folding body with knot-expansion mechanism
Dimensions & Compatibility
Drill Hole Diameter 8mm
Min Embedment Depth 38mm
Wing Expansion Range 8-18mm
Pre-drill Required Yes - drill hole to recommended diameter
Recommended Drill Type Masonry drill bit for hollow substrates
Load Capacity
Load Capacity (Plasterboard) Up to 22kg per anchor
Load Capacity (Hollow Brick) Up to 30kg per anchor
Pull-Out Resistance Varies by substrate density and wing expansion depth
Shear Strength Up to 35kg in 12.5mm plasterboard
Installation
Installation Method Pre-drill hole → insert anchor flush → drive screw to expand wings
Installation Tool Drill + Screwdriver / Impact driver with Phillips bit
Key Mechanism Screw drives into anchor body forcing four wings to fold outward creating knot-lock
Anti-Rotation Feature Ribbed body prevents spinning during screw insertion
Application
Suitable Substrates Plasterboard, Drywall, Gypsum Board, Hollow Brick, Cavity Wall, Aerated Concrete, Lightweight Concrete
Common Uses Curtain Rod Brackets and Window Hardware on Hollow Brick
Environmental & Compliance
Temperature Range -40°C to +80°C
Environmental Suitability Indoor and outdoor use (UV-stabilized PA6)
Corrosion Resistance 100% rust-proof plastic construction
Compliance RoHS Compliant, REACH Compliant
Packaging
Standard Packaging 100 / 200 / 500 / 1000 pieces per box or poly bag
Screws Included Anchors sold separately, matching screw kits available
Certifications ISO 9001:2015

Knot Style Nylon Cavity Universal Wall Plugs Four Wing Expansion Anchor For Curtain Rod Hollow Brick MountingKnot Style Nylon Cavity Universal Wall Plugs Four Wing Expansion Anchor For Curtain Rod Hollow Brick Mounting

Knot Style Nylon Cavity Universal Wall Plugs Four Wing Expansion Anchor For Curtain Rod Hollow Brick Mounting

Knot Style Nylon Cavity Universal Wall Plugs Four Wing Expansion Anchor For Curtain Rod Hollow Brick Mounting

FAQ

Do you have full standard sizes in stock for plastic expansion anchors?

We have complete conventional sizes in stock, full specifications ready for immediate shipment, support mixed size bulk wholesale.


What is the material and load-bearing capacity of your plastic wall plugs?
Made of high-quality new engineering plastic, high toughness anti-crack; stable holding force for drywall, hollow wall and plasterboard, suitable for light and medium load installation.

What types of walls and base materials can this plastic wall plug be used for?
It is widely applicable to gypsum board, plasterboard, hollow brick, aerated concrete, light concrete and cavity wall, no need pre-drilling for soft substrates.

What is your MOQ and wholesale price discount policy?
Low MOQ supports small batch trial order; the more quantity you order, the more favorable wholesale price, exclusive discount for long-term distributors.

What is your production lead time and mass supply capacity?
Spot goods can be shipped within 3-7 days; large batch orders 7-15 days, stable daily output to support continuous large-volume supply for distributors.

Can you customize size, color, packaging and OEM private label?
We support custom size, color, box packaging, carton marking and OEM/ODM private label service for your local market sales.

Do you support mixed batch with other fastener products?
Yes, you can mix order with our other fasteners like screws, bolts and wall plugs to fill one container conveniently.

Can I get free samples for quality checking?
Free samples are available, customers only need to bear the freight; sample size and quantity can be arranged according to your requirement.
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Knot Style Nylon Cavity Universal Wall Plugs Four Wing Expansion Anchor For Curtain Rod Hollow Brick Mounting

Ask Latest Price
Finish :
Bright(Uncoated)
Substrate :
Hollow Brick
Payment Terms :
T/T,L/C,PayPal,Western Union
Wing Count :
4 Wings
Screw Size :
M5
Model Number :
Universal Wall Plugs
Contact Supplier
Knot Style Nylon Cavity Universal Wall Plugs Four Wing Expansion Anchor For Curtain Rod Hollow Brick Mounting
Knot Style Nylon Cavity Universal Wall Plugs Four Wing Expansion Anchor For Curtain Rod Hollow Brick Mounting

Hebei Cangrui Plastic Products Co., Ltd

Verified Supplier
1 Years
hebei, langfang
Since 2015
Business Type :
Manufacturer, Exporter, Seller
Total Annual :
12000000-15000000
Employee Number :
100~120
Certification Level :
Verified Supplier
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