M14 Elastomer-Sealing Nuts are manufactured to Trade series (elastomer-sealing nuts). This page lists the controlling dimensions for the M14 size together with the drive and the installation notes for this type.
Values are taken from the governing standard rather than from a general machine-thread table, because this type is not selected on one.
M14 Dimensional Row (Trade series (elastomer-sealing nuts))
| Thread size | Pitch (mm) | Sealing-rib height (mm) | Thread class | Seal material | Temperature range (°C) | Finish |
|---|
| M14 | 2.0 | | 6H | silicone elastomer | -75~+204 | zinc-chromate plated low-carbon steel |
Spanner & Drive for M14 Elastomer-Sealing Nuts
Drive geometry for M14 Elastomer-Sealing Nuts is given by the row above; match the tool to the listed values.
Tightening Torque for M14
| Class 8.8 (dry, ~µ 0.125) | ≈ 134 Nm |
|---|
| Class 10.9 (dry, ~µ 0.125) | ≈ 197 Nm |
|---|
| Class 12.9 (dry, ~µ 0.125) | ≈ 231 Nm |
|---|
Indicative dry-joint values. Lubrication can lower the required torque by 15–25%. Always confirm against the joint design, especially when going up a strength class.
Proof Load & Strength for M14
Nuts are graded to ISO 898-2 by the proof load the nut itself will hold (classes 04, 05, 5, 6, 8, 10 and 12), not by the 8.8 / 10.9 / 12.9 scale used for bolts. A class-8 nut is the correct mate for a class-8.8 bolt, and the joint is designed on the bolt, so no bolt-tension figure is quoted here.
Mating Parts for M14
Pair M14 with the matching M14 bolt or screw, plus a M14 flat washer where required to distribute load on softer materials.
Custom manufacturing · Made to drawing
Need elastomer-sealing nuts in a size this table does not list?
This page covers M14 elastomer-sealing nuts. Locking method is specifiable independently of the rest: nylon insert, all-metal deformed thread, serrated flange, or none. Made by cold heading or tapping.
Minimum order from 2,000 pieces; samples within 7 days of drawing approval.
Custom nut manufacturingSend a drawing
Applications & Industries for M14 Elastomer-Sealing Nuts
The sectors that buy Elastomer-Sealing Nuts, and the duty each one buys them for. Stocked from M3 to M14.
Industries that specify Elastomer-Sealing Nuts
-
Control cabinets
Silicone ribs seal mounting points without a separate loose gasket.
-
Outdoor equipment
Plated steel supports the nut while the elastomer handles the interface.
-
Process instruments
Metric class 6H threads mate with panel hardware selected for the seal.
-
Weatherproof enclosures
Sealing nuts close a threaded panel joint against water and dust.
-
Automotive & transport
Vibration-prone joints where the locking type is specified on the drawing.
-
Maintenance & MRO
Replacements matched to the existing bolt class, thread and finish.
Typical applications
- matching the rib height and compression to the sheet
- checking the -75 to +204 °C service range
- keeping the mating screw and panel surface aligned
- sealing a threaded pass-through in a panel
- locking an adjustment so it cannot drift
- joints re-torqued at a service interval
Service conditions to specify against
- Marine and coastal
- Available in A4 (316) stainless for chloride exposure — coastal structures, pool halls, water treatment and deck hardware, where A2 will eventually pit.
- High load
- Supplied in ISO 898-1 property classes, so the joint can be designed to a stated proof load and tightened to a calculated torque rather than by feel.
- Sealed joints
- Used where the fixing has to keep water or air out as well as hold — the elastomer, not the fastener, decides service life.
- Match the class
- A nut below the bolt property class strips before the bolt reaches its own limit — pair class 8 nuts with 8.8 bolts, class 10 with 10.9.
Where to use something else
- Do not rely on the nut as a pressure-vessel seal without checking compression, panel flatness and the actual sealing path.
Full application guide: where Elastomer-Sealing Nuts are used, how to specify them, and the cases they are wrong for
