Perforated 316 Stainless Steel Part Number             Hole size           Pitch              % Open area               Sheet size                  Thickness S2916                      1.50mm            2.50mm                     33                         2M x 1M                  0.80mm S4216                      3.00mm            5.00mm                     33                         2M x 1M                  0.70mm S5016                      3.00mm            4.50mm                     40                         2M x 1M                  1.50mm S6516                      3.00mm            5.00mm                     33                         2M x 1M                  2.00mm S7216                      5.00mm            8.00mm                     35                         2M x 1M                  1.50mm S8816                      6.00mm            9.00mm                     40                         2M x 1M                  1.20mm S9116                      6.00mm            9.00mm                     40                         2M x 1M                  1.50mm S9216                      6.00mm            9.00mm                     40                         2M x 1M                  2.00mm   STAINLESS STEEL 304 BRASS COPPER MILD STEEL ALUMINIUM