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You ever had a screw hole that just would not stop leaking? Water seeps in. Dust settles in. The screw rusts. The hole gets loose. The connection fails. You end up reapplying sealant every few months or replacing the whole thing.
Sealing screws come with a rubber ring already attached under the head. When you drive them in, that rubber gets pressed flat against your surface. It seals the hole the moment you tighten it. No waiting. No mess. No sealant.
The rubber sits in a groove under the head. As you turn the screw, the rubber compresses. Keep turning and it compresses more. By the time the head sits flush, the rubber has filled every gap around it.
Not all rubber works the same way. You need to match it to your job.
is good around oil and grease. Use it on engines, pumps, and machinery.
handles heat and cold. Stays flexible from very cold to very hot. Good for outdoor work.
stands up to sun and rain. Roofers and outdoor installers use this one a lot.
is for harsh chemicals. Use it where acids or solvents are around.
handles most outdoor work. Good corrosion resistance.
is better near saltwater. Use it on boats and coastal areas.
is the budget option. Works for indoor or light outdoor use.
means the screw can sit under one meter of water for thirty minutes. No leaks.
means it can stay underwater longer. Good for pumps and submerged gear.
M4, M5, and M6. Lengths from 6mm to 30mm. Need something else? Let us know.
Outdoor electrical boxes. Junction boxes. Meters. Boats. Car lights. Industrial panels. Metal roofs. Pretty much anywhere water is a problem.
We inspect every O ring before packing. We test every batch. ISO 9001 and ISO 10012 certified.
YH Fastener has been making screws and fasteners since 1998. We produce sealing screws, self tapping screws, machine screws, shoulder screws, and custom fasteners. ISO 9001 and ISO 10012 certified. We inspect every batch before shipping. Factory direct. We ship to over 60 countries worldwide.
Need a quote? Send us your drawing or sample. Tell us the size, material, and quantity. We will reply within 24 hours. OEM and custom orders are always welcome.
