| Image | Part Number | Description / PDF | Quantity | Rfq |
|---|---|---|---|---|
 |
Richco, Inc. (Essentra Components) |
KNOCK OUT HOLE PLUG, 1.750 IN HO |
995 |
|
 |
Richco, Inc. (Essentra Components) |
KNOCK OUT HOLE PLUG, 1.500 IN HO |
239 |
|
 |
J.W. Winco |
THREADED TUBE END, PLASTIC |
113 |
|
 |
Richco, Inc. (Essentra Components) |
HOLE PLUG 0.750" NYLON BLACK |
47583 |
|
 |
Richco, Inc. (Essentra Components) |
HOLE PLUG, 20MM HOLE, 0.8-4.0MM |
1888 |
|
 |
Richco, Inc. (Essentra Components) |
HOLE PLUG, SNAP IN, 1.500 IN HOL |
2988 |
|
 |
J.W. Winco |
THREADED TUBE END, PLASTIC |
34 |
|
 |
J.W. Winco |
THREADED TUBE END, PLASTIC |
30 |
|
 |
Richco, Inc. (Essentra Components) |
HOLE PLUG 0.500" THRMPLTC BLACK |
4720 |
|
 |
Richco, Inc. (Essentra Components) |
HOLE PLUG, 10MM HOLE, 0.8-3.5MM |
2352 |
|
 |
J.W. Winco |
THREADED TUBE END, PLASTIC |
30 |
|
 |
J.W. Winco |
THREADED TUBE END, PLASTIC |
30 |
|
 |
Richco, Inc. (Essentra Components) |
HOLE PLUG 1.000" NYLON BLACK |
14857 |
|
 |
J.W. Winco |
THREADED TUBE END, PLASTIC |
40 |
|
 |
Richco, Inc. (Essentra Components) |
HOLE PLUG 0.625" SILICONE BLACK |
1376 |
|
 |
Richco, Inc. (Essentra Components) |
HOLE PLUG, .312 HOLE, .031-.140 |
4500 |
|
 |
Richco, Inc. (Essentra Components) |
HOLE PLUG 0.390" BLACK |
6829 |
|
 |
J.W. Winco |
THREADED TUBE END, PLASTIC |
30 |
|
 |
Richco, Inc. (Essentra Components) |
HOLE PLUG, .218 HOLE, .031-.094 |
2000 |
|
 |
Richco, Inc. (Essentra Components) |
HOLE PLUG, .187 HOLE, .031-.140 |
2990 |
|
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