＊1： Teflon is a registered trademark of DuPont.
FPD production equipment / Semiconductor fabrication wet processes /
Printed circuit board etching devices / Metallic surface treatment
equipment and facilities / Cleaning equipment / Chemical plants
- Sealing washers with a built-in rubber seal.
Sealing washers prevent the leakage of gas and liquid from the bearing surface of the screw head.
The washer body is coated with Teflon. The rubber seal is made of fluororubber, which has excellent chemical resistance.
Chemical Resistance of Teflon Coating⇒Chemical Resistance of Chemical Resistance Screws
Use with SNHS-HTF
Hex Head Screws-Teflon Coating for Head
(SNHS-HTF) to prevent chemical liquids from moving from the bearing surface to the thread.
- Airtight test at 0.6 MPa confirmed that there is no leakage.
Precautions for Use
- Friction with the screw bearing surface during tightening may remove the coating. Take care not to tighten too much.
When combining with SNHS-HTF, use the recommendation torque of SNHS-HTF or less for tightening.
Sealing Washer, which is not Teflon coated is available.SWSSWS-F