Perforated Stock Sheet Patterns and Corresponding Materials

Perforated Sheet (stock pattern)
Materials:
Stainless Steel 304 Pattern: S022 
Mild Steel Pattern: M011

1mm round holes
2mm staggered pitch (RT)
R1  T2

Perforated Sheet (stock pattern)
Materials:
Stainless Steel 304 Pattern: S038
Mild Steel Pattern: M020

2mm round holes
3mm staggered pitch (RT)
R2 T3

Perforated Sheet (stock pattern) 
Materials: 
Stainless Steel 304/316 Pattern: S064
Aluminium, Mild & Galv Steel Patterns: A041, M031

3mm round holes
5mm staggered pitch (RT)
R3 T5

Perforated Sheet (stock pattern)
Materials:
Stainless Steel 304 Patterns: S072, S073, S074
Aluminium Patterns: A041, A051, A052A
Mild Steel & Galv Steel Patterns: M050, M051, G050, G052

5mm round holes
8mm staggered pitch (RT)
R5 T8

Perforated Sheet (stock pattern)
Materials:
Stainless Steel 304 Pattern: S076
Aluminium Pattern: A061
Mild Steel & Galv Steel Patterns: M056, G056

5mm square holes
8mm square pitch (CU)
C5 U8

Perforated Sheet (stock pattern)
Materials:
Stainless Steel 304/316 Patterns: S086, S092J
Mild Steel Patterns: M061, M063
Aluminium Pattern: A065

6mm round holes
9mm staggered pitch (RT)
R6 T9

Perforated Sheet (stock pattern)
Materials:
Stainless Steel 304 Pattern: S095
Mild Steel, Aluminium Patterns: M081, A080
Galvanised Steel Pattern: G081

8mm round holes
12mm staggered pitch (RT)
R8 T12

Perforated Sheet (stock pattern)
Materials:
Stainless Steel 304 Patterns: S104,S105
Galvanised Steel Pattern: G104

10mm square holes
12mm square pitch (CU)
C10 U12

Perforated Sheet (stock pattern) 
Materials:
Stainless Steel 304 Patterns: S106, S107, S108, S109
Mild Steel Patterns: M100, M101, M103
Aluminium Patterns: A100, A100A

10mm round holes
15mm staggered pitch (RT)
R10 T15