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The Blum #4 x 1-3/8 inch countersunk head chipboard screw is a small-gauge fastener designed for cabinet installation work where the screw head must sit flush with the panel surface. Packed 1000 to the box, it is sized for the particleboard, MDF, and melamine-faced panels common in European-style cabinet construction.
Countersunk head chipboard screws earn their place when the fastener head cannot stand proud of the surface. Cabinet backs, interior panel joints, and hardware positions near finished faces all call for a screw that disappears into the material. The countersunk geometry pulls the head down flush as it seats, leaving a clean surface that does not interfere with drawer boxes, hinge plates, or adjacent panels. At #4 gauge, this screw is intended for light-duty panel fastening rather than structural framing, making it a practical choice for the type of fine-clearance work that fills out a cabinet assembly.
The nickel finish on this screw is a deliberate match for Blum's hardware ecosystem. When screws are visible inside a cabinet — even briefly during installation — a consistent metal tone across fasteners and fittings keeps the assembly looking intentional. Beyond appearance, the chipboard thread geometry and sharp point are calibrated for the low-density fiber matrix of particleboard and MDF, where a coarse, deep thread resists pull-out better than a standard wood screw profile would in the same material. This is a dry, indoor fastener suited to climate-controlled cabinet interiors.
Cabinet shops running European frameless construction, installers fitting Blum hardware on a finished job site, and millwork teams assembling melamine or laminated panel carcasses are the primary buyers. The 1000-piece count matches the rhythm of production work, where running short mid-assembly is a real cost. Designers specifying hardware packages for kitchen or bath projects can call out this screw by Blum part number 664.3500 to keep the fastener and fitting systems aligned from the same source.
A countersunk head pulls flush with the panel surface as it seats, so it does not create a bump or snag point on cabinet interiors. A pan or washer head would stand proud and could interfere with drawer boxes, shelves, or adjacent components in tight clearances.
Yes. The chipboard thread geometry is engineered for low-density engineered wood panels. The deep, coarse thread engages more fiber volume than a standard wood screw, improving pull-out resistance in particleboard, MDF, and melamine-faced panels.
This screw is sourced from Blum and is sized to match Blum hardware systems. For specific mounting hole dimensions, confirm against the installation sheet for the Blum fitting being installed.
This is an interior fastener. The nickel finish is suited to dry, climate-controlled cabinet environments and is not rated for outdoor or high-humidity exposure.
Each box contains 1000 screws.
When head profile, gauge, finish, and thread form all match the panel material and the hardware system, installation goes faster and the finished cabinet looks the way it should. This Blum countersunk chipboard screw is that match for European-style cabinet construction.
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