| Image | Part Number | Description / PDF | Quantity | Rfq |
|---|---|---|---|---|
 |
Richco, Inc. (Essentra Components) |
HOLE PLUG 0.781" NYLON BLACK |
3759 |
|
 |
Richco, Inc. (Essentra Components) |
HOLE PLUG 1" PVC BLACK |
2975 |
|
 |
Richco, Inc. (Essentra Components) |
HOLE PLUG, SNAP IN, 3.500 IN HOL |
97 |
|
 |
Richco, Inc. (Essentra Components) |
HOLE PLUG, .437 HOLE, .031-.171 |
4980 |
|
 |
Richco, Inc. (Essentra Components) |
HOLE PLUG, .375 HOLE, .031-.140 |
4399 |
|
 |
Richco, Inc. (Essentra Components) |
WINDOW HOLE PLUG, .375 HOLE, .12 |
898 |
|
 |
Richco, Inc. (Essentra Components) |
HOLE PLUG 0.250" NYLON BLACK |
732 |
|
 |
Richco, Inc. (Essentra Components) |
HOLE PLUG, .875 HOLE, .031-.109 |
5000 |
|
 |
Richco, Inc. (Essentra Components) |
HOLE PLUG SILICONE BLACK |
200 |
|
 |
Richco, Inc. (Essentra Components) |
HOLE PLUG, SNAP IN, .312 IN HOLE |
5000 |
|
 |
Richco, Inc. (Essentra Components) |
HOLE PLUG 0.551" THRMPLTC BLACK |
2040 |
|
 |
Richco, Inc. (Essentra Components) |
HOLE PLUG, SNAP IN, .375 IN HOLE |
2770 |
|
 |
Richco, Inc. (Essentra Components) |
HOLE PLUG PARALLEL PROT YELLOW |
2600 |
|
 |
Richco, Inc. (Essentra Components) |
HOLE PLUG THERMOPLASTIC BLACK |
990 |
|
 |
Richco, Inc. (Essentra Components) |
HOLE PLUG 0.437" NYLON BLACK |
1423 |
|
 |
Richco, Inc. (Essentra Components) |
HOLE PLUG, .787 HOLE, .059-.080 |
2000 |
|
 |
Richco, Inc. (Essentra Components) |
HOLE PLUG, .187 HOLE, .031-.100 |
2590 |
|
 |
Richco, Inc. (Essentra Components) |
HOLE PLUG, 12MM HOLE, 0.8-3.5MM |
1753 |
|
 |
Richco, Inc. (Essentra Components) |
HOLE PLUG SHT METAL 3" BLACK |
2005 |
|
 |
Richco, Inc. (Essentra Components) |
HOLE PLUG 2.000" NYLON BLACK |
13377 |
|
Hole plugs (also known as blanking plugs or hole covers) are mechanical fasteners designed to seal, protect, or provide structural integrity to openings in various materials. They play a critical role in preventing fluid leakage, dust ingress, vibration damping, and maintaining aesthetic finishes in industrial and consumer applications.
| Type | Functional Features | Application Examples |
|---|---|---|
| Expansion Plugs | Expand radially to grip hole walls | Automotive frame sealing |
| Threaded Plugs | Mechanical screw-in retention | Hydraulic system ports |
| Elastomeric Plugs | Flexible rubber compression seal | Electrical conduit protection |
| Quick-Release Plugs | Tool-free installation/removal | Aerospace panel access |
Typical hole plug assemblies consist of: - Body: Cylindrical or tapered base (metal/plastic/rubber) - Retention Features: Threads, barbs, or expanding segments - Sealing Interface: O-ring, lip seal, or compressive material - Head Style: Flush, protruding, or recessed for tool engagement
| Parameter | Significance |
|---|---|
| Material Compatibility | Corrosion resistance and chemical exposure |
| Size Range | Metric/Imperial diameter specifications |
| Temperature Resistance | Operating range (-40 C to +150 C typical) |
| Insertion Force | Installation effort requirements |
| Retention Strength | 50-500N pull-out resistance |
Key industries include: - Automotive (engine bay sealing) - Electronics (panel cutout protection) - Construction (concrete formwork plugs) - Medical equipment (sterile barrier systems) - Marine (hull penetration sealing)
| Manufacturer | Representative Product |
|---|---|
| 3M | Scotch-Weld Plastic Welding Kits |
| Saint-Gobain | Calvasil silicone sealing plugs |
| Illinois Tool Works | Bossard elastic retention plugs |
| Roxtec | Multidiameter cable transit seals |
Consider: - Environmental exposure (UV, chemicals) - Required IP rating (IP54/IP67) - Installation frequency - Substrate material (metal, plastic, composite) Case Study: Automotive manufacturers use nylon expansion plugs (PA66) with integrated gaskets for wheel well openings, providing IP68 protection while reducing assembly time by 30%.
Emerging developments: - Lightweight composite materials - Integrated smart sensors for seal integrity monitoring - Biodegradable polymer solutions - 3D-printed custom geometries - Anti-vibration designs for EV battery enclosures