Electrical Outlet Box Nylon Plastic Expansion Screw Anchor Drywall Mounting Complete Fastener Kit
Product Description
The Nylon Plastic Expansion Screw is a compact pre-assembled fastening solution specifically engineered for electrical outlet boxes, switch panels, and junction box mounting on drywall and plasterboard surfaces. Each complete set includes a 5mm diameter PA6 nylon expansion plug pre-matched with an M3 x 25mm zinc-plated steel screw, providing a ready-to-use fastening system without the need to source or verify screw compatibility.
The installation follows the classic expansion principle: drill a 5mm hole at the marked outlet box position, insert the nylon plug until its collar sits flush with the wall surface, then drive the M3 screw into the plug. As the screw advances, the cone-shaped tail forces the plug body to expand radially against the hole wall, creating a secure friction lock that anchors the electrical box firmly in place. The nylon plug body is non-conductive and electrically insulating, providing inherent safety when mounting near live wiring and electrical components.
Features
Compact Pre-Assembled Kit
Each set comes with the nylon expansion plug and matching zinc-plated M3 screw pre-packed together in one unit, eliminating the need to source and verify screw compatibility separately. Simply open the pack and install immediately with confidence that the screw diameter, length, and thread pitch are perfectly matched to the plug expansion characteristics.
Flush Wall Box Mounting
The low-profile nylon plug collar sits completely flush against the wall surface after insertion, allowing electrical outlet boxes and switch panels to be mounted tightly against the drywall without any visible anchor protrusions or gaps around the fixture perimeter that could compromise the finished appearance.
Electrical Insulation Safe
The 100% nylon plug body is naturally non-conductive and electrically insulating, providing a critical safety advantage when mounting outlet boxes and switch panels adjacent to live wiring. Unlike metal anchors, there is absolutely no risk of short-circuit, grounding issues, or current conduction through the fastener body in electrical applications.
Technical Parameters
| Product Name |
Plastic Expansion Screw (Nylon Plug + Matching Screw Set) |
| Plug Diameter |
5mm |
| Plug Length |
25mm |
| Screw Diameter |
M3 |
| Screw Length |
25mm |
| Pre-drill Hole Diameter |
5mm |
| Plug Material |
Nylon PA6 / Polyamide Engineering Plastic |
| Screw Material |
Carbon Steel (Zinc-Plated) / Stainless Steel (Optional) |
| Color Options |
Yellow, White, Grey, Blue, OEM Custom |
| Installation Method |
Pre-drill → insert plug → drive screw → expansion lock |
| Load Capacity (Solid Brick) |
Up to 18kg |
| Load Capacity (Drywall 12.5mm) |
Up to 8kg |
| Temperature Range |
-40°C to +80°C (PA6 nylon) |
| Compliance |
RoHS Compliant, REACH Compliant |
| Packaging |
100 / 200 / 500 / 1000 pieces per box or poly bag |




FAQ
Q: Do you have full standard sizes in stock for plastic expansion anchors?
A: We have complete conventional sizes in stock, full specifications ready for immediate shipment, support mixed size bulk wholesale.
Q: What is the material and load-bearing capacity of your Plastic insulation anchors?
A: 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.
Q: What types of walls and base materials can this wall plug be used for?
A: It is widely applicable to gypsum board, plasterboard, hollow brick, aerated concrete, light concrete and cavity wall, no need pre-drilling.
Q: What is your MOQ and wholesale price discount policy?
A: Low MOQ supports small batch trial order; the more quantity you order, the more favorable wholesale price, exclusive discount for long-term distributors.
Q: What is your production lead time and mass supply capacity?
A: 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.
Q: Can you customize size, color, packaging and OEM private label?
A: We support custom size, color, box packaging, carton marking and OEM/ODM private label service for your local market sales.
Q: Do you support mixed batch with other fastener products?
A: Yes, you can mix order with our other fasteners like screws, bolts and wall plugs to fill one container conveniently.
Q: Can I get free samples for quality checking?
A: Free samples are available, customers only need to bear the freight; sample size and quantity can be arranged according to your requirement.