Attaching the faucet to the sink.
Photo: Kolin Smith

Step 4: Attach the faucet to the sink

From underneath the sink, slide the triangular plastic washer, then the fiber washer, metal washer, and finally the circular nut over the hoses.

Push the nut assembly up to the underside of the counter. Screw the circular nut onto the large threads of the faucet stem. Use the basin wrench to tighten it. Then clamp the nut to the triangular plastic washer with the screws provided.

Tip: Have a helper hold the faucet in the correct position on top of the sink while you fasten it in place underneath.
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    Tools List

    • bucket
    • basin wrench
      Basin wrench
    • adjustable wrench
      2 adjustable wrenches
    • flathead screwdriver
      Flat-head screwdriver

    Shopping List

    1. FAUCET

    Usually comes with everything necessary for installation, except braided supply lines.


    Needed to connect faucets that have rigid tubing.


    if necessary, to cover holes in the sink rim or the countertop when replacing a three-hole faucet.