| Image | Part Number | Description / PDF | Quantity | Rfq |
|---|---|---|---|---|
 |
Richco, Inc. (Essentra Components) |
HOLE PLUG, SNAP IN, 1.750 IN HOL |
1495 |
|
 |
Richco, Inc. (Essentra Components) |
HOLE PLUG SHT METAL 2.625" BLACK |
1226 |
|
 |
Richco, Inc. (Essentra Components) |
HOLE PLUG, .437 HOLE, .031-.171 |
4987 |
|
 |
Richco, Inc. (Essentra Components) |
HOLE PLUG 0.252" THRMPLTC BLACK |
7861 |
|
 |
Richco, Inc. (Essentra Components) |
HOLE PLUG SHT METAL 1.5" BLACK |
3773 |
|
 |
Richco, Inc. (Essentra Components) |
HOLE PLUG, .480 HOLE, .031-.039 |
5000 |
|
 |
Richco, Inc. (Essentra Components) |
VENT PLUG, SNAP IN, .875 IN HOLE |
3000 |
|
 |
Richco, Inc. (Essentra Components) |
HOLE PLUG 0.500" BLACK |
5251 |
|
 |
Richco, Inc. (Essentra Components) |
HOLE PLUG 0.687" NYLON BLACK |
29531 |
|
 |
Richco, Inc. (Essentra Components) |
HOLE PLUG SILICONE BLACK |
600 |
|
 |
Richco, Inc. (Essentra Components) |
HOLE PLUG SHT METAL .563" BLACK |
11989 |
|
 |
Richco, Inc. (Essentra Components) |
HOLE PLUG, .187 HOLE, .031-.140 |
8825 |
|
 |
Richco, Inc. (Essentra Components) |
HOLE PLUG 0.866" THRMPLTC BLACK |
697 |
|
 |
Richco, Inc. (Essentra Components) |
HOLE PLUG, 1.000 HOLE, .031-.109 |
3990 |
|
 |
Richco, Inc. (Essentra Components) |
HOLE PLUG, 6MM HOLE, 0.8-1.6MM P |
956 |
|
 |
Richco, Inc. (Essentra Components) |
KNOCK OUT HOLE PLUG, .875 IN HOL |
9983 |
|
 |
Richco, Inc. (Essentra Components) |
HOLE PLUG .875" PVC BLACK |
2900 |
|
 |
Richco, Inc. (Essentra Components) |
HOLE PLUG THERMOPLASTIC BLACK |
4786 |
|
 |
Richco, Inc. (Essentra Components) |
HOLE PLUG, 1.000 HOLE, .031-.109 |
3988 |
|
 |
Richco, Inc. (Essentra Components) |
HOLE PLUG, 18MM HOLE, 0.8-4.0MM |
4999 |
|
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