Kohler K-2600 Guide D'installation page 6

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Self-Rimming Installation (cont.)
Assemble the clip and wing nut to the stud and carefully
finger-tighten to remove any gaps between the lavatory rim and
the countertop. Do not overtighten the wing nuts.
Remove any excess sealant using damp cloth.
Allow sealant to set for 30 minutes before proceeding.
Proceed to the Complete the Installation section.
1018896-2-C 6 Kohler Co.