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Product description: A cavity-free seal can only be assured in combination with the Hygienic USIT® seal and shim washer. The polished screws have a surface finish of Ra < 0.8 µm. Internal transition areas with a minimum radius of 3 mm are also provided, preventing dirt particles from adhering to the components and ensuring easy cleaning. Hexagon head bolts with collar for Hygienic USIT® seal and shim washers are ideal for fastening in sterile areas and also conform to EHEDG regulations, something that is confirmed with the relevant certificate. Material: Stainless steel 1.4404. Version: Polished. Note: The EHEDG certificate is only valid when a specifically matched Hygienic USIT® seal and shim washer K1491 is used. Suggested Accessories: Hygienic USIT® seal and shim washer K1491. Hexagon cap nut with collar K1493. Sockets with plastic inserts K1361. Ring/open-end spanner with protective caps K1362.
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