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! 🛠