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The Würth #6 x 1-5/8" drywall screw is sized for attaching 1/2-inch gypsum board to wood framing. Its twinfast double-lead thread, sharp point, and #1 square drive combine to move quickly through board and bite cleanly into wood studs.
The 1-5/8" length is the standard choice for single-layer 1/2-inch gypsum board on wood framing. It drives through the board and penetrates the stud far enough for solid holding power without punching through the back side. That makes this screw the go-to for walls, ceiling patches, and general interior gypsum work where the board is a half inch thick and the framing is standard dimensional lumber or engineered wood.
The twinfast thread is a double-start design with two thread leads beginning at offset positions on the shank. Each revolution advances the screw twice the distance of a single-lead thread, cutting installation time on any wall or ceiling run where screws are going in one after another. The #1 square drive handles that faster pace well. Square drive geometry reduces the cam-out that slows production with Phillips-only fasteners, and the recess is designed to hold the screw on a correctly sized bit. The black finish keeps the head visually low-profile against the gray board surface.
This screw fits the workflow of contractors hanging drywall on wood framing, remodelers closing up walls with a partial sheet, and shop staff fastening gypsum board assemblies in controlled interior environments. The box of 100 is practical for jobs where the total screw count is manageable or where having a separate box by the cut table or lift is more convenient than pulling from a large bucket. Keep this one for dry indoor work; the black finish is not rated for exterior or high-moisture applications.
The 1-5/8" length is sized for 1/2-inch board on wood framing. For 5/8-inch gypsum board, a longer screw is typically specified to maintain adequate stud penetration.
The twinfast design uses two thread leads that start at opposing points on the shank. The screw advances twice as far with each revolution compared to a standard single-lead thread, which speeds up driving when installing multiple fasteners in sequence.
This screw uses a #1 square drive. A #1 square bit is required. The square recess is designed to hold the screw on a correctly sized bit, but bit retention depends on using a true #1 square bit, not a worn or off-spec substitute.
This is a sharp-point screw designed for wood framing. Drywall installation into metal studs typically requires an S-type screw with a self-tapping point engineered for light-gauge steel. This screw is for wood framing applications.
Yes. The black finish on this screw is suited for dry indoor environments. It is not specified for exterior, high-humidity, or moisture-exposed applications.
The twinfast thread and square drive on this #6 x 1-5/8" screw are a practical combination for any interior drywall job where driving speed and bit engagement matter, in a box size that works for the job at hand.
Sold In: 100 Each
Quantity | Unit Price | Catalog | ||||
|---|---|---|---|---|---|---|
Sold in: 1 Each |  WW90220 Mfr# 0614176139961 1 | #2 x 2" Square Drive Insert Bit, 2 Piece Bit | ||||
Sold in: 1 Each |  WW90240 Mfr# 0614176142961 1 | #2 x 4" Square Drive Insert Bit, 2 Piece Bit |