Using this Inside Outside Thread sleeve Screw isn’t hard at all—you don’t need any special tools or training to use it. First, check the product’s size to make sure it fits the threaded hole and bolt you’re using. Then, clean out the threaded hole to get rid of any dust, dirt, or rust—those things can mess up the installation and how it works. Next, take the product and screw it into the hole by hand first. Make sure it goes in smoothly; don’t force it. If it gets stuck, stop and check if the hole is clean or if the size is a match. Once you’ve screwed it in by hand, use a regular tool to tighten it up—don’t tighten it too much, because that could damage the threads. After you install it, you can screw the bolt into the product like normal. You just need to make sure it’s installed tightly so it doesn’t come loose when you use it. The Inside Outside Thread sleeve Screw is easy to use, and if you follow these simple steps, it’ll work just fine for what you need.
We use regular surface treatment methods for this product, and all of them are just for practical use—not for how it looks. Galvanizing is the most common one; it keeps the product from rusting, which is especially useful if you use it in damp areas or outside. We also do black oxide treatment, which is mostly for parts used indoors, like machinery components that don’t get wet. For simple situations where rust isn’t a big issue, we just leave the surface plain.
Every treatment follows basic industrial rules, and we check each piece right after treatment to make sure there are no issues—like uneven coating or rust spots. The treatment process is straightforward but works well, so the product can be used normally in different environments. The Inside Outside Thread sleeve Screw’s surface treatment is just meant to make it last longer and prevent problems that get in the way of its use.
| Mon | M10 | M20 | M22 | M24 | M27 | M30 | M33 | M36 | M39 |
| P | 1 | 1.5 | 1.5 | 1.5 | 1.5 | 1.5 | 1.5 | 2 | 2 |
| d1 min | 12.08 | 23.48 | 26 | 28.14 | 31.44 | 34.64 | 37.94 | 41.44 | 44.74 |
| d1 max | 12.36 | 23.88 | 26.52 | 28.74 | 32.14 | 35.44 | 38.74 | 42.34 | 45.64 |
| b min | 7.9 | 16.8 | 18.8 | 20.8 | 23.8 | 26.8 | 29.8 | 31.8 | 34.8 |
| b max | 8.9 | 18.3 | 20.3 | 22.3 | 25.3 | 28.3 | 31.3 | 33.8 | 36.8 |
Q: What material do you use to make the Inside Outside Thread sleeve Screw?
A: We mainly use stainless steel, which has basic rust resistance and is suitable for most industrial environments. If you need other materials for special use scenarios, we can also produce it according to your requirements. We can provide material test reports to ensure the quality of the product.