
Sealing
Helps block openings in components and assemblies.

Masking Plugs
Threaded and ribbed silicone masking plugs for holes and ports.
STANDARD DIMENSIONS
Use the reference sizes below to compare the fit. Confirm availability and lead time with your quotation.
Custom dimensions can also be manufactured to your requirements.
| 1 | M3/M4 | 2.01 | 3.99 | 19.05 |
| 2 | M5/M6 | 3.99 | 5.99 | 25.4 |
| 3 | M8 | 5.99 | 8 | 25.4 |
| 4 | M10 | 7.95 | 10.31 | 25.4 |
| 5 | M12 | 10.01 | 11.99 | 25.4 |
| 6 | M14 | 11.89 | 14.27 | 25.4 |
| 7 | M16 | 14 | 16 | 25.4 |
| 8 | M18 | 16 | 18.01 | 25.4 |
| 9 | M20 | 18.01 | 19.99 | 25.4 |
| 10 | M22 | 19.99 | 22.5 | 25.4 |
| 11 | M24 | 22.5 | 24 | 25.4 |
| 12 | M26 | 24 | 26.01 | 25.4 |
| 13 | M28 | 26.01 | 27.99 | 25.4 |
| 14 | M30/M32 | 28.58 | 31.75 | 25.4 |
A: top diameter. B: bottom diameter. C: overall length. All dimensions are in millimeters. Custom sizes available upon request.
Our factory makes silicone masking plugs with threaded and ribbed profiles for masking holes and ports. Send the mating thread or bore dimensions, coating temperature and process media so we can review the profile and silicone grade. Custom dimensions, colors and Shore A hardness can be developed from your drawing or sample.
Yes. Share your drawing, color and estimated quantity for a manufacturing review.
Measure the hole and insertion depth, then provide the operating temperature and contact media so we can review the fit and material.
Our factory can adapt the dimensions and material to your drawing or sample.
Choose your dimensions, material, hardness and color.
Custom dimensions
to your drawing or sample
Silicone and other
rubber compounds
From soft to firm
to suit the material and fit
Standard and custom
colors available
Discuss the intended use so we can review the shape, compound and sample checks.

Helps block openings in components and assemblies.

Covers and protects threaded or plain holes during manufacturing or processing.

Useful for masking holes in surface treatment processes.
NEED A CUSTOM SOLUTION?
Send your drawing or sample details to our factory. Include the mating dimensions, service conditions and quantity so we can review your part.
Get a Quote