Ultimate Countersunk Washer Collection | M3-M10 | Perfect Flush Fit

Tired of ugly screw heads ruining the sleek look of your 3D printed parts or woodworking projects? Welcome to the Ultimate Countersunk Washer Collection. This comprehensive hardware set is engineered with precision to perfectly hide metric flat head screws (ISO 10642 / DIN 965). Every washer features an accurate 90° chamfer and a precisely calculated 0.1mm depth clearance, ensuring your screw heads sit perfectly flush—or just a hairline below the surface—for an incredibly satisfying, professional look.

✨ The Ultimate 54-Piece Matrix:

Forget "one size fits all." This set includes a massive variety of sizes from M3 all the way up to M10. For every single screw size, you get a complete matrix of 9 distinct variations (3 Outer Diameters $\times$ 3 Thicknesses) so you can choose the exact footprint and strength you need for your specific project!

Here are the included dimensions for each screw size:

• M3 (9 variations): Widths (10mm, 12mm, 15mm)  Thicknesses (2.0mm, 2.5mm, 3.0mm)

• M4 (9 variations): Widths (12mm, 15mm, 18mm) Thicknesses (2.5mm, 3.0mm, 4.0mm)

• M5 (9 variations): Widths (15mm, 18mm, 20mm) Thicknesses (3.0mm, 4.0mm, 4.5mm)

• M6 (9 variations): Widths (18mm, 20mm, 25mm) Thicknesses (3.5mm, 4.5mm, 5.0mm)

• M8 (9 variations): Widths (22mm, 25mm, 30mm) Thicknesses (5.0mm, 6.0mm, 7.0mm)

• M10 (9 variations): Widths (28mm, 30mm, 35mm) Thicknesses (6.0mm, 7.0mm, 8.0mm)

🎛 Parametric & Scalable Base: Designed with strict parametric rules. Even with 54 files to choose from, if you still need something specific, the geometry holds up beautifully. Need a slightly thicker base? Simply scale the Z-axis in your slicer. Need a wider footprint? Scale X and Y uniformly.

🚀 Effortless Printing: Designed to print 100% flat on the build plate. Absolutely NO supports required. Print a whole plate of these in minutes!

🛠 Material Agnostic: Print them in PLA for basic projects, PETG/ABS/ASA for high mechanical strength, or even TPU for vibration-dampening soft mounts.

📐 Technical Details:

• Chamfer Angle: True 90° (45° from vertical) to match standard metric flat head screws.

• Clearance: Through-holes are slightly oversized to account for 3D printer tolerances and ensure a drop-in fit.

• Recess: Calculated with a built-in 0.1mm depth buffer so your screws never protrude.

• Reinforced Base: Every model maintains a solid bottom layer to prevent crushing under high torque.

⚙ Recommended Print Settings:

• Layer Height: 0.12mm - 0.20mm (lower layer heights give smoother chamfers).

• Walls/Perimeters: 3 to 4 walls (crucial for structural strength when tightening).

• Infill: 15-25% Gyroid (or just use 100% infill/all perimeters since they are small parts).

• Brim: Not needed unless your bed adhesion is struggling.

Drop a like, share your makes, and let me know if you need any custom dimensions in the comments! Happy printing! 🛠