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[Lifetime Warranty] 4-Inch Metal Screw-In Shower Drain Strainer Cover Kit - Fits US Standard Sizes - Complete Kit with Machine & Self-Tapping Screws

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4-Inch Metal Screw-In Shower Drain Strainer Cover Kit

Key Features

  • 4-inch diameter circular screw-in drain cover designed for standard residential shower pans and floor drains.
  • Manufactured from heavy-gauge stamped metal with a corrosion-resistant finish to withstand continuous water flow and standard bathroom cleaning agents.
  • Punched grid pattern engineered to optimize water drainage speed while effectively catching hair and large debris to prevent pipe clogs.
  • Complete installation kit includes both standard machine screws and self-tapping screws to accommodate various drain shoe materials.

Replaces / Cross-Reference Part Numbers

  • Universal 4-Inch Round Shower Strainer
  • Standard 4" Screw-In Drain Grate
  • 4-1/4" Drain Cover Trim Set

Compatibility & Fitment

  • Compatible with standard US residential shower drain bodies requiring a flat, screw-mount configuration.
  • Fits major rough plumbing brands including Oatey, Sioux Chief, and ProFlo featuring standard center-to-center screw hole spacing (typically 2-7/8 inches to 3 inches).
  • Suitable for direct installation onto PVC, ABS, or cast-iron drain collars using the appropriately provided screw type.

When to Replace

  • The existing metal drain grate is heavily tarnished, rusted, or structurally compromised by corrosion.
  • The cover is dented, bent, or has sharp edges, creating a physical cut hazard for bare feet.
  • Original mounting screws are stripped, broken, or missing, causing the strainer assembly to sit loosely, shift, or rattle.
  • Updating bathroom hardware finishes during a shower stall remodel or routine cosmetic maintenance.

Installation Tips

  • Thoroughly clean the drain collar opening, removing any built-up soap scum, hair, or hard water deposits prior to seating the new grate.
  • Align the new strainer cover over the drain body to verify the center-to-center screw spacing matches perfectly.
  • Select the correct fasteners: use the flat-tipped machine screws for threaded metal drain bodies, or the sharp self-tapping screws for unthreaded plastic (PVC/ABS) drain bodies.
  • Hand-tighten the screws evenly using a standard Phillips-head or flathead screwdriver; avoid using power drills to prevent stripping the threads or warping the metal grate.
  • RESIST TO DEFORMATION

    RESIST TO DEFORMATION

    With is thickness of 0.04 inch, this part is sturdy enough to not easily be deformed while installing or during use.
  • EFFORTLESS INSTALLATION

    EFFORTLESS INSTALLATION

    Simply place cover on the drain hole choose your suitable screw type, then tighten it with a screwdriver.
  • EFFECTIVE DRAINAGE

    EFFECTIVE DRAINAGE

    With drainage holes, this cover prevents unwanted debris/particles while ensuring efficient water flow rate, keep your bathroom clean and dry quickly.
  • EXCEPTIONAL DURABILITY

    EXCEPTIONAL DURABILITY

    Crafted and test by professionals, BlueStars Screw-in Drain Hole Cover is built to ensure long-lasting performance & outlasts other similar products.

FAQ

This trim set is intended for 4-inch shower drain openings that use a screw-in strainer cover. It is designed for US standard-size applications. Before ordering, compare your existing cover style and confirm your drain uses a screw-mounted grate rather than a snap-in or tile-in style cover.
The two screw types help cover common drain-body conditions. Machine screws are typically used when the drain body already has usable threaded holes. Self-tapping screws can help when the original threads are damaged, stripped, or not pre-threaded. Always test fit carefully and avoid forcing the wrong screw type, which can damage the drain body.
Common signs include a rusted or discolored cover, broken or missing screws, a loose grate that shifts underfoot, stripped mounting holes, or a cover that no longer sits flat and secure. Replacement is also a good idea if the old strainer has sharp edges or corrosion that makes cleaning difficult.
Installation is usually straightforward for a direct replacement. In most cases, you only need a screwdriver that matches the screw head, plus a small brush or pick to clean debris from the screw holes. If the old screws are seized from corrosion, penetrating oil and careful screw removal may help. For a routine replacement, installation often takes about 10 to 20 minutes.
Remove the old cover and clean soap scum, hair, mineral buildup, and rust from the drain rim and screw holes. Check that the drain body is still structurally sound and that the mounting points are not cracked. If the old machine screws failed because the holes are damaged, verify whether the included self-tapping screws are the better option for your drain.
The most common causes are constant moisture exposure, cleaning chemicals, mineral deposits, and corrosion around the screw holes. Over-tightening can also strip threads or crack older drain bodies. Regular cleaning and avoiding excessive torque during installation can help extend the life of the new trim set.