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Self-sealing screws provide reliable 360-degree leak protection against gases, liquids, dust, and contaminants. By integrating an elastomeric O-ring under the head, they eliminate the need for secondary sealing materials, chemical sealants, or separate washers.
When matched with the proper mounting surfaces and applied at specified torques, these sealing screws can achieve ratings up to IP67 and IP68, ensuring high resistance against dust intrusion and sustained water submersion.
Screw bodies are standardly manufactured from stainless steel (304, 316) and zinc-plated carbon steel. O-ring options include Silicone, NBR (Buna-N), Viton (FKM), and EPDM to suit various chemical exposure and temperature requirements.
Yes, in many non-critical applications, sealing screws can be reused if the O-ring has not suffered deformation, tear, or chemical degradation. For high-reliability and critical waterproof sealing, replacing the O-ring or fastener assembly is recommended.
Available head styles include Pan Head, Hex Socket Cap, and Flat Countersunk configurations. Drive options encompass Torx (six-lobe), Hex Socket, and Phillips, engineered to facilitate stable torque transfer and prevent head stripping.
Proper torque is essential to ensure the O-ring is compressed into the designed groove without being pinched or over-extruded. Recommended torque values depend on the screw diameter, thread pitch, and target clamping load.
