Enclosure Accessories / Unused entry
Sealing Screw Plugs
Metal and nylon plugs that close unused threaded holes in enclosures.
- Thread: Thread system, diameter and pitch
- Head clearance: Hex-head or round-head form and room for the tool
- Seal and body: Sealing face, material and enclosure environment
Enclosure accessories
Sealing plugs, vents and pressure-relief valves.
Close unused openings with a sealing plug. Choose venting, pressure relief or a combined vent and relief valve for the enclosure.
Sealing Screw Plugs range
Choose your sealing screw plugs
Sealing screw plugs close unused threaded holes. Choose a metal hex-head, metal round-head or nylon form to suit the enclosure and tool access.
Models & specifications
Sealing Screw Plugs: specifications and dimensions
Select a product to see its specifications, drawings and sizes.
Product selection
Choose the plug thread and head form.
Match the enclosure thread, then check the space around the head and the length available inside the enclosure.- 01Thread: Thread system, diameter and pitch
- 02Head clearance: Hex-head or round-head form and room for the tool
- 03Seal and body: Sealing face, material and enclosure environment
Metal Hex-Head Blanking Plugs
01 / Enclosure openings
Metal Hex-Head Blanking Plugs
A metal blanking plug with a hexagonal head for closing unused threaded enclosure entries. Choose nickel-plated brass, 304 stainless steel or 316L stainless steel, with an NBR or silicone O-ring.
Product reference
- Product group
- Sealing Screw Plugs
- Application
- Close an unused enclosure port with a hexagonal metal plug and an O-ring seal.
Key specifications
- Product Type
- Hex Head Sealing Plug / Blanking Plug
- Body Material
- Nickel-Plated Brass / Stainless Steel (304, 316L)
- O-Ring Material
- NBR or Silicone Rubber
- Ingress Protection
- IP68
Product specifications
Construction and details
Separated assembly components
Compare the arrangement of the illustrated parts. Confirm the assembly instructions for the selected model.
This illustration does not establish the current model’s certification or approval.
Section view and dimension markers
Read the marked dimensions with the current model drawing; do not infer sizes by measuring the illustration.
Drawing markers: D · H · GL · AG
Model specification tablesFurther specifications
- Operating Temperature
- -40°C to +100°C
- Thread Types
- Metric, PG, NPT, G
- Available Metric Sizes
- M8 – M72
- Available PG Sizes
- PG7 – PG48
Key features
- Hex-Head bodyThe solid body closes a spare cable entry without routing a cable through the opening.
- Metal and seal optionsNickel-plated brass, 304 stainless steel and 316L stainless steel bodies are available with NBR or silicone O-rings.
- Four thread familiesMetric, PG, NPT and G versions cover different enclosure entry threads.
Metal Round-Head Blanking Plugs
02 / Enclosure openings
Metal Round-Head Blanking Plugs
A metal blanking plug with a rounded head for closing unused threaded enclosure entries. Choose nickel-plated brass, 304 stainless steel or 316L stainless steel, with an NBR or silicone O-ring.
Product reference
- Product group
- Sealing Screw Plugs
- Application
- Close an unused enclosure port with a rounded metal plug and an O-ring seal.
Key specifications
- Product Type
- Round Head Sealing Plug / Blanking Plug
- Body Material
- Nickel-Plated Brass / Stainless Steel (304, 316L)
- O-Ring Material
- NBR or Silicone Rubber
- Ingress Protection
- IP68
Product specifications
Construction and details
Separated assembly components
Compare the arrangement of the illustrated parts. Confirm the assembly instructions for the selected model.
This illustration does not establish the current model’s certification or approval.
Section view and dimension markers
Read the marked dimensions with the current model drawing; do not infer sizes by measuring the illustration.
Drawing markers: D · H · GL · AG
Model specification tablesFurther specifications
- Operating Temperature
- -40°C to +100°C
- Thread Types
- Metric, PG, NPT, G
- Available Metric Sizes
- M8 – M72
- Available PG Sizes
- PG7 – PG48
Key features
- Round-Head bodyThe solid body closes a spare cable entry without routing a cable through the opening.
- Metal and seal optionsNickel-plated brass, 304 stainless steel and 316L stainless steel bodies are available with NBR or silicone O-rings.
- Four thread familiesMetric, PG, NPT and G versions cover different enclosure entry threads.
Nylon Round-Head Blanking Plugs
03 / Enclosure openings
Nylon Round-Head Blanking Plugs
A nylon blanking plug with a round head and an NBR or EPDM O-ring for unused Metric or PG cable entries. Black and light-gray versions are available, with custom colors on request.
Product reference
- Product group
- Sealing Screw Plugs
- Application
- Close a spare Metric or PG entry with a nylon plug that matches the enclosure color.
Key specifications
- Product Type
- Round Head Nylon Sealing Plug / Blanking Plug
- Body Material
- Nylon PA6/PA66
- O-Ring Material
- NBR (Nitrile Rubber) or EPDM (Weathering Resistance Rubber)
- Ingress Protection
- IP68 (with O-ring)
Product specifications
Construction and details
Section view and dimension markers
Read the marked dimensions with the current model drawing; do not infer sizes by measuring the illustration.
Drawing markers: D · H · GL · AG
Model specification tablesFurther specifications
- Static Temperature
- -40°C to +100°C (short term to 120°C)
- Dynamic Temperature
- -20°C to +80°C (short term to 100°C)
- Thread Types
- M (Metric), PG
- Colors
- Black (RAL 9005), Light Gray (RAL 7035), custom colors available
Key features
- Nylon round headA solid nylon body closes an unused entry.
- O-ring sealNBR and EPDM seal options are available; the IP68 configuration includes an O-ring.
- Metric and PG optionsChoose the thread size to suit the enclosure opening.
Model specification tables
Model sizes and specifications
Metal Hex-Head Blanking Plugs
Sealing Screw Plugs
Metal Hex-Head Blanking Plugs
Model specificationsMetric thread
| Thread | Model | Thread Length GL (mm) | Total Length (mm) | Plug Outer Dia. (mm) |
|---|---|---|---|---|
| M8 × 1.25 | SCIIM8 | 5 | 8 | 11 |
| M10 × 1.5 | SCIIM10 | 5 | 8 | 12 |
| M12 × 1.5 | SCIIM12 | 5 | 8 | 14 |
| M14 × 1.5 | SCIIM14 | 6 | 9 | 17 |
| M16 × 1.5 | SCIIM16 | 6 | 9 | 18 |
| M18 × 1.5 | SCIIM18 | 6 | 9 | 20 |
| M20 × 1.5 | SCIIM20 | 6.5 | 9.5 | 22 |
| M22 × 1.5 | SCIIM22 | 6.5 | 9.5 | 24 |
| M24 × 1.5 | SCIIM24 | 6.5 | 10 | 27 |
| M25 × 1.5 | SCIIM25 | 6.5 | 10 | 27 |
| M27 × 1.5 | SCIIM27 | 7 | 11 | 30 |
| M28 × 1.5 | SCIIM28 | 7 | 11 | 30 |
| M30 × 1.5 | SCIIM30 | 7 | 11 | 32 |
| M32 × 1.5 | SCIIM32 | 7 | 11 | 35 |
| M33 × 1.5 | SCIIM33 | 7 | 11 | 35 |
| M36 × 1.5 | SCIIM36 | 8 | 12 | 40 |
| M37 × 1.5 | SCIIM37 | 8 | 12 | 40 |
| M40 × 1.5 | SCIIM40 | 8 | 13 | 45 |
| M42 × 1.5 | SCIIM42 | 8 | 13 | 45 |
| M47 × 1.5 | SCIIM47 | 9 | 14 | 52 |
| M48 × 1.5 | SCIIM48 | 9 | 14 | 52 |
| M50 × 1.5 | SCIIM50 | 9 | 14 | 55 |
| M54 × 1.5 | SCIIM54 | 10 | 15 | 57 |
| M60 × 1.5 | SCIIM60 | 10 | 15 | 64 |
| M63 × 1.5 | SCIIM63 | 10 | 15 | 68 |
| M64 × 2 | SCIIM64 | 10 | 15 | 68 |
| M70 × 2 | SCIIM70 | 12 | 18 | 78 |
| M72 × 2 | SCIIM72 | 12 | 18 | 78 |
| M75 × 2 | SCIIM75 | 12 | 18 | 78 |
| M80 × 2 | SCIIM80 | 13 | 19 | 86 |
| M88 × 2 | SCIIM88 | 15 | 21 | 96 |
| M100 × 2 | SCIIM100 | 15 | 21 | 110 |
Model specificationsPG thread
| Thread | Model | Thread Length GL (mm) | Total Length (mm) | Plug Outer Dia. (mm) |
|---|---|---|---|---|
| PG7 | SCIIPG7 | 5 | 8 | 14 |
| PG9 | SCIIPG9 | 6 | 9 | 18 |
| PG11 | SCIIPG11 | 6 | 9 | 20 |
| PG13.5 | SCIIPG13.5 | 6.5 | 9.5 | 22 |
| PG16 | SCIIPG16 | 6.5 | 10 | 24 |
| PG19 | SCIIPG19 | 6.5 | 10 | 27 |
| PG21 | SCIIPG21 | 7 | 11 | 30 |
| PG25 | SCIIPG25 | 7 | 11 | 35 |
| PG29 | SCIIPG29 | 8 | 12 | 40 |
| PG36 | SCIIPG36 | 9 | 14 | 52 |
| PG42 | SCIIPG42 | 10 | 15 | 57 |
| PG48 | SCIIPG48 | 10 | 15 | 64 |
| PG63 | SCIIPG63 | 12 | 18 | 78 |
Model specificationsNPT thread
| Thread | Model | Thread Length GL (mm) | Total Length (mm) | Plug Outer Dia. (mm) |
|---|---|---|---|---|
| NPT1/4 | SCIINPT1/4 | 5 | 8 | 14 |
| NPT3/8 | SCIINPT3/8 | 6 | 9 | 18 |
| NPT1/2 | SCIINPT1/2 | 6.5 | 9.5 | 24 |
| NPT1 | SCIINPT1 | 7 | 11 | 35 |
| NPT1-1/4 | SCIINPT1-1/4 | 8 | 13 | 45 |
| NPT1-1/2 | SCIINPT1-1/2 | 10 | 15 | 52 |
| NPT2 | SCIINPT2 | 10 | 15 | 64 |
| NPT2-1/2 | SCIINPT2-1/2 | 12 | 18 | 78 |
| NPT3 | SCIINPT3 | 15 | 21 | 96 |
Model specificationsG thread
| Thread | Model | Thread Length GL (mm) | Total Length (mm) | Plug Outer Dia. (mm) |
|---|---|---|---|---|
| G1/4 | SCIIG1/4 | 5 | 8 | 14 |
| G3/8 | SCIIG3/8 | 6 | 9 | 18 |
| G1/2 | SCIIG1/2 | 6.5 | 9.5 | 24 |
| G1 | SCIIG1 | 7 | 11 | 35 |
| G1-1/4 | SCIIG1-1/4 | 8 | 13 | 45 |
| G1-1/2 | SCIIG1-1/2 | 10 | 16 | 52 |
| G2 | SCIIG2 | 10 | 15 | 64 |
| G2-1/2 | SCIIG2-1/2 | 12 | 18 | 78 |
| G3 | SCIIG3 | 15 | 21 | 96 |
Metal Round-Head Blanking Plugs
Sealing Screw Plugs
Metal Round-Head Blanking Plugs
Model specificationsMetric thread
| Thread | Model | Thread Length GL (mm) | Total Length (mm) | Plug Outer Dia. (mm) |
|---|---|---|---|---|
| M8 × 1.25 | SCIM8 | 5 | 8 | 11 |
| M10 × 1.5 | SCIM10 | 5 | 8 | 12 |
| M12 × 1.5 | SCIM12 | 5 | 8 | 14 |
| M14 × 1.5 | SCIM14 | 6 | 9 | 17 |
| M16 × 1.5 | SCIM16 | 6 | 9 | 18 |
| M18 × 1.5 | SCIM18 | 6 | 9 | 20 |
| M20 × 1.5 | SCIM20 | 6.5 | 9.5 | 22 |
| M22 × 1.5 | SCIM22 | 6.5 | 9.5 | 24 |
| M24 × 1.5 | SCIM24 | 6.5 | 10 | 27 |
| M25 × 1.5 | SCIM25 | 6.5 | 10 | 27 |
| M27 × 1.5 | SCIM27 | 7 | 11 | 30 |
| M28 × 1.5 | SCIM28 | 7 | 11 | 30 |
| M30 × 1.5 | SCIM30 | 7 | 11 | 32 |
| M32 × 1.5 | SCIM32 | 7 | 11 | 35 |
| M33 × 1.5 | SCIM33 | 7 | 11 | 35 |
| M36 × 1.5 | SCIM36 | 8 | 12 | 40 |
| M37 × 1.5 | SCIM37 | 8 | 12 | 40 |
| M40 × 1.5 | SCIM40 | 8 | 13 | 45 |
| M42 × 1.5 | SCIM42 | 8 | 13 | 45 |
| M47 × 1.5 | SCIM47 | 9 | 14 | 52 |
| M48 × 1.5 | SCIM48 | 9 | 14 | 52 |
| M50 × 1.5 | SCIM50 | 9 | 14 | 55 |
| M54 × 1.5 | SCIM54 | 10 | 15 | 57 |
| M60 × 1.5 | SCIM60 | 10 | 15 | 64 |
| M63 × 1.5 | SCIM63 | 10 | 15 | 68 |
| M64 × 2 | SCIM64 | 10 | 15 | 68 |
| M70 × 2 | SCIM70 | 12 | 18 | 78 |
| M72 × 2 | SCIM72 | 12 | 18 | 78 |
| M75 × 2 | SCIM75 | 12 | 18 | 78 |
| M80 × 2 | SCIM80 | 13 | 19 | 86 |
| M88 × 2 | SCIM88 | 15 | 21 | 96 |
| M100 × 2 | SCIM100 | 15 | 21 | 110 |
Model specificationsPG thread
| Thread | Model | Thread Length GL (mm) | Total Length (mm) | Plug Outer Dia. (mm) |
|---|---|---|---|---|
| PG7 | SCIPG7 | 5 | 8 | 14 |
| PG9 | SCIPG9 | 6 | 9 | 18 |
| PG11 | SCIPG11 | 6 | 9 | 20 |
| PG13.5 | SCIPG13.5 | 6.5 | 9.5 | 22 |
| PG16 | SCIPG16 | 6.5 | 10 | 24 |
| PG19 | SCIPG19 | 6.5 | 10 | 27 |
| PG21 | SCIPG21 | 7 | 11 | 30 |
| PG25 | SCIPG25 | 7 | 11 | 35 |
| PG29 | SCIPG29 | 8 | 12 | 40 |
| PG36 | SCIPG36 | 9 | 14 | 52 |
| PG42 | SCIPG42 | 10 | 15 | 57 |
| PG48 | SCIPG48 | 10 | 15 | 64 |
| PG63 | SCIPG63 | 12 | 18 | 78 |
Model specificationsNPT thread
| Thread | Model | Thread Length GL (mm) | Total Length (mm) | Plug Outer Dia. (mm) |
|---|---|---|---|---|
| NPT1/4 | SCINPT1/4 | 5 | 8 | 14 |
| NPT3/8 | SCINPT3/8 | 6 | 9 | 18 |
| NPT1/2 | SCINPT1/2 | 6.5 | 9.5 | 24 |
| NPT1 | SCINPT1 | 7 | 11 | 35 |
| NPT1-1/4 | SCINPT1-1/4 | 8 | 13 | 45 |
| NPT1-1/2 | SCINPT1-1/2 | 10 | 15 | 52 |
| NPT2 | SCINPT2 | 10 | 15 | 64 |
| NPT2-1/2 | SCINPT2-1/2 | 12 | 18 | 78 |
| NPT3 | SCINPT3 | 15 | 21 | 96 |
Model specificationsG thread
| Thread | Model | Thread Length GL (mm) | Total Length (mm) | Plug Outer Dia. (mm) |
|---|---|---|---|---|
| G1/4 | SCIG1/4 | 5 | 8 | 14 |
| G3/8 | SCIG3/8 | 6 | 9 | 18 |
| G1/2 | SCIG1/2 | 6.5 | 9.5 | 24 |
| G1 | SCIG1 | 7 | 11 | 35 |
| G1-1/4 | SCIG1-1/4 | 8 | 13 | 45 |
| G1-1/2 | SCIG1-1/2 | 10 | 16 | 52 |
| G2 | SCIG2 | 10 | 15 | 64 |
| G2-1/2 | SCIG2-1/2 | 12 | 18 | 78 |
| G3 | SCIG3 | 15 | 21 | 96 |
Nylon Round-Head Blanking Plugs
Sealing Screw Plugs
Nylon Round-Head Blanking Plugs
Model specificationsMetric thread
| Metric Thread | Model | Thread Length GL (mm) | Thread outside diameter AG (mm) | Total height OL (mm) | Excircle (mm) |
|---|---|---|---|---|---|
| M12 × 1.5 | NSCM12 | 8.5 | 12 | 12.5 | 15 |
| M16 × 1.5 | NSCM16 | 8.5 | 16 | 13.0 | 19 |
| M18 × 1.5 | NSCM18 | 9.0 | 18 | 13.0 | 22 |
| M20 × 1.5 | NSCM20 | 9.0 | 20 | 13.0 | 25 |
| M22 × 1.5 | NSCM22 | 10.5 | 22 | 15.0 | 27 |
| M25 × 1.5 | NSCM25 | 10.5 | 25 | 15.5 | 33 |
| M27 × 1.5 | NSCM27 | 10.5 | 27 | 16.0 | 38 |
| M32 × 1.5 | NSCM32 | 11.5 | 32 | 18.0 | 46 |
| M40 × 1.5 | NSCM40 | 13.5 | 40 | 19.0 | 56 |
| M63 × 1.5 | NSCM63 | 14.0 | 63 | 19.0 | 68 |
Model specificationsPG thread
| Screw Thread | Model | Thread Length GL (mm) | Thread outside diameter AG (mm) | Total height OL (mm) | Excircle (mm) |
|---|---|---|---|---|---|
| PG7 | NSCPG7 | 8.5 | 12.5 | 12.5 | 15 |
| PG9 | NSCPG9 | 8.5 | 15.2 | 13.0 | 19 |
| PG11 | NSCPG11 | 9.0 | 18.6 | 13.0 | 22 |
| PG13.5 | NSCPG13.5 | 9.0 | 20.4 | 13.0 | 25 |
| PG16 | NSCPG16 | 10.5 | 22.5 | 15.0 | 27 |
| PG21 | NSCPG21 | 10.5 | 28.3 | 15.5 | 33 |
| PG29 | NSCPG29 | 11.5 | 37 | 16.0 | 44 |
| PG36 | NSCPG36 | 13.5 | 47 | 18.0 | 55 |
| PG42 | NSCPG42 | 13.5 | 54 | 18.5 | 62 |
| PG48 | NSCPG48 | 14.5 | 59.3 | 19.5 | 68 |
Product comparison
Screw-plug threads and head styles.
Compare thread size and length, head dimensions, material and seal arrangement.| Product | Construction | Use when | Check first | Review |
|---|---|---|---|---|
| Metal Hex-Head Blanking Plugs | Sealing Screw Plugs | Close an unused enclosure port with a hexagonal metal plug and an O-ring seal. |
| View specifications |
| Metal Round-Head Blanking Plugs | Sealing Screw Plugs | Close an unused enclosure port with a rounded metal plug and an O-ring seal. |
| View specifications |
| Nylon Round-Head Blanking Plugs | Sealing Screw Plugs | Close a spare Metric or PG entry with a nylon plug that matches the enclosure color. |
| View specifications |
Need help matching an existing part? Send us its model name or a photo.
Selection checks
Choose the right model
Sealing screw plugs close unused threaded holes. Choose a metal hex-head, metal round-head or nylon form to suit the enclosure and tool access.
- ThreadThread system, diameter and pitch
- Head clearanceHex-head or round-head form and room for the tool
- Seal and bodySealing face, material and enclosure environment
Product support
Need a model recommendation or a quote?
Send a model name, a photo or a short question. We can help with product selection, samples and pricing. Share any of the details below that you already have.
Request product support- Plug marking or photoA plug marking or photo is enough to start identifying a replacement.
- Entry thread sizeInclude the thread system, size and pitch if you know them.
- Preferred head form and materialChoose a hex or round head and mention any preferred metal or nylon body.
- Enclosure wall and sealing faceA photo or drawing can show the wall thickness and the surface the plug seal sits against.
Sealing Screw Plugs FAQ
Product questions
Find answers about fit, wiring and product differences.
Sealing Screw Plugs
01Can I use a plug with a similar nominal thread size?
Use the same thread system, size and pitch as the enclosure. A similar nominal size does not make Metric, PG, G and NPT threads interchangeable.
02How do I choose between the head forms?
Check the space around the opening and how the plug will be tightened. Compare head diameter or spanner size, usable thread length and the sealing face.
Metal Hex-Head Blanking Plugs
Metal Hex-Head Blanking Plugs
01Which threads are available for the hex-head plug?
Metric, PG, NPT and G versions are available. The metric range is M8–M72 and the PG range is PG7–PG48; thread pitch and plug dimensions vary by model.
02Does this plug let the enclosure breathe?
No. It closes the entry. Use a protective vent when the enclosure needs an airflow path for pressure equalization.
03Is the O-ring part of the seal?
Yes. The O-ring seals the plug against the enclosure surface; the thread also needs to match the entry.
Metal Round-Head Blanking Plugs
Metal Round-Head Blanking Plugs
01Which threads are available for the round-head plug?
Metric, PG, NPT and G versions are available. The metric range is M8–M72 and the PG range is PG7–PG48; thread pitch and plug dimensions vary by model.
02Does this plug let the enclosure breathe?
No. It closes the entry. Use a protective vent when the enclosure needs an airflow path for pressure equalization.
03Is the O-ring part of the seal?
Yes. The O-ring seals the plug against the enclosure surface; the thread also needs to match the entry.
Nylon Round-Head Blanking Plugs
Nylon Round-Head Blanking Plugs
01Is the nylon plug supplied in NPT or G threads?
This nylon range has Metric and PG options. The metal blanking-plug ranges also offer NPT and G threads.
02What colors are available?
Black RAL 9005 and light gray RAL 7035 are standard choices. Custom colors can be requested.
03Does the nylon plug need an O-ring for IP68?
Yes. The IP68 specification applies to the version fitted with an O-ring.