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3mm Square Hole Mild Steel Perforated Sheet (C3 U5)
Perforated sheetMild steelKenton code K103M
Stock and sheet sizes
| Mild steelK103M | 2000 x 1000 | kg/m² |
|---|---|---|
| 1.0mm | ✓ In stock | 5.0 |
✓ In stockon the shelf in Bristol5-7 daysmade to orderBlank = not a standard size · sizes in mm
- Cut to sizewhile you wait
- Next working daydelivery on stock sheets
- Folded & fabricatedto your drawing
Description
Technical details
Hole layout

Enlarged, not to scale. Dimensions in mm, pitch measured centre to centre.
Specification
- Hole
- 3mm square
- Pitch
- 5mm in-line
- Bar between holes
- 2mm
- Open area
- 36%
- Holes per m²
- 40,000
- Thickness
- 1mm
- Material
- Mild steel
About C3 U5 mild steel perforated sheet
C3 U5 is a 3mm square hole perforated sheet in mild steel, with the holes on a 5mm in-line pitch giving 36% open area. We keep it in stock here in Bristol, in 1mm thickness. Every sheet can be cut to size while you wait, and stock sheets go out on next working day delivery anywhere in the UK.
In stock: 1mm in 2m x 1m sheets. Everything else in the table is made to order in 5-7 days.
What does C3 U5 mean?
C3 is a 3mm square hole. U5 means the holes sit on a 5mm in-line pitch, measured centre to centre.
Similar patterns
| Pattern | Hole | Pitch | Open area | Thickness | Stock |
|---|---|---|---|---|---|
| C3 U5This page | 3mm square | 5mm in-line | 36% | 1mm | ✓ In stock |
| C5 U8 | 5mm square | 8mm in-line | 39% | 1–2mm | ✓ In stock |
| C6 U9 | 6mm square | 9mm in-line | 44% | 1–2mm | ✓ In stock |
| C8 U10 | 8mm square | 10mm in-line | 64% | 1–2mm | ✓ In stock |
| C8 U12 | 8mm square | 12mm in-line | 44% | 1–3mm | ✓ In stock |
| C10 U14 | 10mm square | 14mm in-line | 51% | 1–3mm | ✓ In stock |
| C10 U15 | 10mm square | 15mm in-line | 44% | 1–4mm | ✓ In stock |
The nearest mild steel square hole patterns to C3 U5. See every mild steel pattern →
Dimensions are nominal and weights approximate. Stock changes daily, so please call to confirm.




