Product Specification
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| Payment Terms |
T/T,L/C,PayPal,Western Union |
Finish |
Bright(Uncoated) |
| Packaging Details |
Inner poly bag or small box, export corrugated carton with custom marking available |
Substrate |
Plasterboard |
| Wing Count |
4 Wings |
Screw Size |
M4 |
| Corrosion Proof |
100% Rust-Free |
Drill Hole |
6mm |
| Supply Ability |
1000000 Pieces per Month |
Connection Method |
Bolt Joint |
| Use Case |
Bathroom Hooks |
Measurement System |
Metric |
| Water Resistance |
Moisture-Proof |
Delivery Time |
3-7 days for stock, 10-20 days for production |
| Color |
White, Grey, OEM |
Material |
Nylon PA6 |
| Anchor Length |
40mm |
Fastener Type |
Four-Wing Sleeve Anchor |
| Certification |
ISO9001 |
Brand Name |
CangRui |
| Place of Origin |
Hebei, China |
Model Number |
Universal Wall Plugs |
| High Light |
nylon expansion bolt plastic
,nylon plastic expansion plug
,bathroom expansion bolt plastic
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Moisture-Proof Nylon Four-Wing Knot Wall Anchor Plastic Expansion Plug for Bathroom Plasterboard Fixtures
Product Description
The M4 x 40mm Nylon Four-Wing Knot Expansion Wall Plug is a moisture-proof plastic fastening solution engineered for bathroom and damp environment applications on plasterboard surfaces. The anchor features a four-wing expansion body made from water-resistant PA6 nylon that will not rust, corrode, or swell in humid conditions, making it the ideal choice for towel hooks, robe hooks, and bathroom accessory mounting. When the M4 screw is driven in, the four wings fold outward behind the plasterboard, forming a secure knot-lock that resists pull-out even under repeated towel tugging. Installation requires drilling a 6mm hole, inserting the anchor until flush, and driving the screw to deploy the wing locking mechanism.
Features
Moisture-Proof Nylon Body - Specialized water-resistant PA6 nylon compound prevents moisture absorption and swelling in bathroom environments, maintaining structural integrity where metal anchors would rust and fail.
Corrosion-Free Wing Design - 100% plastic construction ensures the four expanding wings never corrode, making this anchor permanently reliable in damp areas like bathrooms, laundry rooms, and outdoor covered spaces.
Hollow Wall Cavity Lock - The knot-expansion mechanism grips the inner face of plasterboard cavities securely, distributing load across a wide bearing area for stable towel hook and accessory mounting.
Flush Surface Finish - The anchor collar sits flush against the plasterboard surface after installation, creating a clean, professional appearance for visible bathroom fixture mounting points.
Technical Parameters
| Product Name |
Nylon Four-Wing Knot Expansion Wall Plug UW Series |
| Model Number |
UW-M440 |
| Screw Diameter |
M4 |
| Anchor Length |
40mm |
| 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 |
| Drill Hole Diameter |
6mm |
| Min Embedment Depth |
43mm |
| Wing Expansion Range |
6-16mm |
| Pre-drill Required |
Yes - drill hole to recommended diameter |
| Recommended Drill Type |
Masonry drill bit for hollow substrates |
| Load Capacity (Plasterboard) |
Up to 18kg per anchor |
| Load Capacity (Hollow Brick) |
Up to 24kg per anchor |
| Pull-Out Resistance |
Varies by substrate density and wing expansion depth |
| Shear Strength |
Up to 28kg in 12.5mm plasterboard |
| 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 |
| Suitable Substrates |
Plasterboard, Drywall, Gypsum Board, Hollow Brick, Cavity Wall, Aerated Concrete, Lightweight Concrete |
| Common Uses |
Towel Hooks and Bathroom Accessories on Plasterboard |
| 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 |
| 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 |




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.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
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Business Type:
Manufacturer,Exporter,Seller
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Total Annual:
12000000-15000000
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Employee Number:
100~120
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Ecer Certification:
Verified Supplier
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