| Image | Part Number | Description / PDF | Quantity | Rfq |
|---|---|---|---|---|
 |
Richco, Inc. (Essentra Components) |
HOLE PLUG, 1.000 HOLE, .031-.109 |
4901 |
|
 |
Richco, Inc. (Essentra Components) |
HOLE PLUG 0.278" NYLON BLACK |
9548 |
|
 |
Richco, Inc. (Essentra Components) |
HOLE PLUG, .218 HOLE, .031-.062 |
3993 |
|
 |
Richco, Inc. (Essentra Components) |
HOLE PLUG SHT METAL 1.094" BLACK |
7988 |
|
 |
Richco, Inc. (Essentra Components) |
HOLE PLUG, SNAP IN, 1.250 IN HOL |
2750 |
|
 |
Richco, Inc. (Essentra Components) |
WINDOW HOLE PLUG, .500 HOLE, .12 |
1688 |
|
 |
Richco, Inc. (Essentra Components) |
HOLE PLUG, .250 HOLE, .031-.062 |
6070 |
|
 |
Richco, Inc. (Essentra Components) |
HOLE PLUG 0.307" NYLON BLACK |
2523 |
|
 |
Richco, Inc. (Essentra Components) |
HOLE PLUG, .375 HOLE, .031-.140 |
4996 |
|
 |
Richco, Inc. (Essentra Components) |
HOLE PLUG, .250 HOLE, .031-.062 |
4945 |
|
 |
Richco, Inc. (Essentra Components) |
HOLE PLUG 0.625" NYLON BLACK |
3008 |
|
 |
Richco, Inc. (Essentra Components) |
HOLE PLUG PARALLEL PROT YELLOW |
4000 |
|
 |
Richco, Inc. (Essentra Components) |
PIPE PLUGS, HEX, 1/8-27 NPT THRE |
1498 |
|
 |
Richco, Inc. (Essentra Components) |
HOLE PLUG, SNAP IN, 4.000 IN HOL |
193 |
|
 |
Richco, Inc. (Essentra Components) |
HOLE PLUG 0.312" NYLON BLACK |
2837 |
|
 |
Richco, Inc. (Essentra Components) |
HOLE PLUG 1.375" NYLON BLACK |
1216 |
|
 |
Richco, Inc. (Essentra Components) |
HOLE PLUG SHT METAL .75" BLACK |
7953 |
|
 |
Richco, Inc. (Essentra Components) |
HOLE PLUG, 24MM HOLE, 0.8-4.0MM |
2000 |
|
 |
Richco, Inc. (Essentra Components) |
HOLE PLUG SHT METAL 1" BLACK |
3480 |
|
 |
Richco, Inc. (Essentra Components) |
HOLE PLUG 0.750" BLACK |
21137 |
|
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