The Eaz-Lift Self-Tapping Screw is a replacement part for the Eaz-Lift Right and Left-Hand Sway Controls. This zinc-plated steel hardware includes six 3/8" x 1" self-tapping screws and six 3/8" lock washers. Prior to installation, this product requires drilling 11/32" pilot holes in the trailer frame for the tongue ball mounting plate of the sway bar control.• Six 3/8" x 1" self-tapping screws with 3/8" lock washers• Replacement screws for Eaz-Lift Sway Control• Made of zinc-plated steel 3/8"" x 1"" self-tapping screws with 3/8"" lock washers 6-pack | Camco Eaz-Lift 3/8" x 1" Self-Tapping Screw, 6-Pack