4, 5, 6mm Stainless Steel Fastener Kit218 pieces Bolts and Screws Qty Part 25 M4x10 Socket Head 25 M4x12 Socket Head 25 M4x16 Socket Head 15 M4x20 Socket Head 25 M5x12 Socket Head 25 M5x16 Socket Head 25 M5x20 Socket Head 15 M5x25 Socket Head 25 M6x12 Socket Head Cap 25 M6x16 Socket Head Cap 25 M6x20 Socket Head Cap 25 M6x25 Socket Head Cap Nuts and Washers Qty Part 25 M4 Hex Nut 25 M4 Nylock Hex Nut 25 M4 Flat Washer 25 M4 Lockwasher 25 M5 Hex Nut 25 M5 Nylock Hex Nut 25 M5 Flat Washer