Kohler K-11800 Guide D'installation page 7

Fixture
5. Drain Installation-Style B
Remove the protective cover from the flange.
Apply a ring of plumbers putty or other sealant to the underside
of the flange according to the putty manufacturer's instructions.
Assemble the nut, flat washer, and tapered gasket (tapered side
up) fully onto the body.
From the underside of the fixture, insert the drain body up into
the drain hole.
From the top of the fixture, securely hand tighten the flange onto
the drain body.
Make sure the drain body seal hole is facing the back of the
fixture, and securely tighten the nut.
Remove any excess putty or sealant.
Kohler Co.
Flange
Apply Plumbers
Putty.
Gasket
Washer
Nut
Drain Body
7 1031176-2-A