M14: 2.5mm thick, 28mm OD, 15mm ID. M16: 3.0mm thick, 30mm OD, 17mm ID. M8: 1.6mm thick, 16mm OD, 8.4mm ID. M12: 2.5mm thick, 24mm OD, 13mm ID. M10: 2.0mm thick, 20mm OD, 10.5mm ID. M4: 0.8mm thick, 9mm OD, 4.3mm ID.
M2 M2.5 M3 M4 M5 M6 M7 M8 M10 M12 FORM G STAINLESS STEEL FLAT WIDE HEAVY WASHERS
A2 & A4 STAINLESS M3 M4 M5 M6 M7 M8 M10 FORM A B C G & WASHERS HEAVY THICK FLAT
M4 M5 M6 M7 M8 M10 M12 HEXAGON FULL NUT HEX NUTS DIN 934 A2 STAINLESS STEEL
M8 Form A Flat Washers A4 Marine Grade Stainless Steel 316 for M2, M3, M4, M5, M6, M7, M8, M10 and M12 Screws (Pack of 20)
HEX FULL NUT STEEL HEXAGON METRIC ZINC PLATED BZP M4 M5 M6 M7 M8 M10 M12 - M30
???????? NYLOC NUTS M3 M4 M5 M6 M7 M8 M10 NYLON INSERT LOCK NUT ZINC PLATED