frame
brace
holder
duty
heavy
plate
diy
bracket
adjustable
hardware
repair
connector
strap
m4
bar
mounting
joiner
flat
beam
strustural
slotted
Heavy Duty Mounting Plates (Flat) | M4 Holes

Print Profile(1)
18
6
Released 2026-01-28
Need to connect two parts rigidly? These 3D printable flat bars are designed for structural applications in DIY projects, robotics, or furniture repair.
Key Features:
- Reinforced Design: The area around the bolt holes is thickened/reinforced to prevent cracking under screw tension.
- Standard Dimensions: All plates are 20mm wide and 3mm thick.
- M4 Compatibility: Holes are sized for M4 screws (loose fit for easy assembly).
The Set Includes 5 Lengths:
- Fixed Hole Versions:
- 40mm
- 50mm
- 60mm
- Adjustable (Slotted) Versions:
- 80mm (Features elongated slots for adjustment)
- 100mm (Features elongated slots for adjustment)
Printing Instructions:
- Orientation: Print flat on the bed.
- Material: PETG or ASA recommended for mechanical strength, PLA is fine for indoor use.
- Infill: 35% or higher (Grid or Gyroid) for stiffness.
- Perimeters: Use 4-5 wall loops. This is crucial – walls provide more strength than infill in thin parts like this.
Originality of the Model
The author declares that this work is their personally original model
This model is licensed under the following terms:
Credit must be given to the creator
Only noncommercial uses of the work are permitted
Models(8)
4 80 2.3mfDesigner302.22 KB
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4 80 2.STLDesigner154.48 KB
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4 100 2.STLDesigner162.19 KB
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4 100 4.STLDesigner223.91 KB
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4 80 4.STLDesigner221.37 KB
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4 60 3.STLDesigner174.11 KB
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4 50 2.STLDesigner131.72 KB
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4 40 2.STLDesigner133.68 KB
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