Flat Head Self Sealing Screws M3 M4 M5 Black Oxide With Rubber Seal For Medical Device Portable Enclosure Assembly
Countersunk flat head sealing screws feature a precision machined 82 degree countersunk head with a silicone O ring pre installed in the under head groove. When tightened the flat head sits flush with the material surface while the O ring compresses to create a complete watertight seal.
These self sealing screws are ideal for electronics enclosures, medical device housings, portable instrument cases, chemical resistant boxes, and food processing equipment where a smooth surface finish is required.
The flat head countersunk design allows for flush mounting with no protruding parts making these screws perfect for applications where the screw head must not interfere with other components or where a clean appearance is important.
Manufactured from stainless steel 316 for superior corrosion resistance in harsh environments. Silicone O ring provides excellent performance across a wide temperature range from -50°C to 200°C. Black oxide finish available for reduced glare and improved aesthetics.
Standard metric thread sizes M3 M4 M5 with custom lengths available. Viton O ring option available for chemical resistance applications.
Every screw undergoes 100% dimensional inspection and O ring integrity testing before packing. OEM and custom manufacturing services available with short lead times.
Features
82 degree countersunk flat head sits completely flush with the material surface leaving no protruding parts. Perfect for applications where a smooth finish is required.
Pre installed silicone O ring compresses during installation creating a complete watertight seal against water immersion and dust ingress.
High grade marine stainless steel offers superior corrosion resistance for harsh environments including saltwater and chemical exposure.
Silicone O ring performs reliably from -50°C to 200°C making these screws suitable for extreme temperature applications.
The integrated O ring design eliminates the need for separate sealing washers or liquid sealant saving assembly time and reducing mess.
The flat head design allows for a smooth clean surface with no screw heads sticking out ideal for medical devices and electronics enclosures.
Choose from silicone for wide temperature range or Viton for chemical resistance based on your specific application requirements.
Uniform metric threads M3 M4 M5 ensure consistent driving torque and reliable clamping force on every screw.
Optional black oxide coating reduces glare and provides a professional appearance for visible applications.
Standard lengths from 6mm to 25mm in stock. Custom lengths available for OEM orders.
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