Small Seal with a Big Job
Our Screw Filler Plugs seal holes in your hydraulic tank, transmission, and axle, preventing oil leaks. They also keep dirt and water out, serving as the first line of defense. A quality Screw Filler Plug keeps your oil clean and helps your parts last longer. We manufacture these plugs with care to ensure a reliable seal every time.
Made for Many Uses
We make these plugs from different materials depending on the application. For high-pressure systems, we use steel with zinc or Dacromet coating to prevent rust. For non-critical areas, we use brass or plastic. Threads are made to standard sizes, such as metric or NPT, and we add a copper washer or O-ring to enhance sealing. Our Screw Filler Plugs perform well on forklifts subject to vibration and extreme temperature changes.
Pick the Right One or Tell Us Your Requirements
We stock a wide range of standard plugs, with common sizes from M6 to M30. If you need a special size or head type, we can make it. We can also add a magnet to catch metal particles. Some plugs include a breather hole or pressure test point. Let us know your machine's needs. The table below shows key specifications:
Product Specifications
| Specification | Details |
| Materials | Steel (zinc/Dacromet), brass, nylon, plastic |
| Thread Types | Metric, NPT, BSPP |
| Seal Method | Copper washer, O-ring, tapered thread |
| Common Sizes | M6 to M30 and above |
| Customization | Special head, magnet, breather, test port |
FAQ
Q: How do I stop a plug from leaking?
A: Ensure the threads are clean, use the correct washer or O-ring, and tighten to the proper torque. If it still leaks, we can help you choose a better plug.
Q: Can you make a plug with a magnet?
A: Yes. This helps catch metal particles in the oil, keeping your gearbox cleaner.
Q: Do you have plugs for high-pressure systems?
A: Yes. We use steel with strong threads and effective sealing. Tell us your pressure requirements, and we will select the right plug.
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