M4 Washers Black, 25pcs Flat Washers DIN9021, Jeboler 304 Stainless Steel Washer for Screws A2 V2A, Large Flat Repair Washer, Round Metal Spacers for Bolts, Screws, Nuts（M4 x 12mm）

Premium MaterialsPerfect A2 V2A standard 304 stainless steel washers with smooth surface & edge which is solid & durable, excellent corrosion resistance & rust resistance that provide a long service life.

PrecisionStandard: DIN 9021, ISO 7093. Inside diameter, outside diameter and thickness please refer to pictures. Please check the size of black large flat washers you need before purchasing.

Practical FunctionFlat repair washers can effectively disperse the pressure generated by the fasteners, by increasing the contact area, parts can be protected from damage, and prevent loose connection between fasteners. Used to reduce friction, prevent leakage, isolate, prevent loosening or dispersing pressure.

Perfect AccessoriesPerfect combination with fender bolts, hex bolts, wing nuts, hexagon nuts and other types of bolts and nuts. Plain round lock washers spacers is great to have around for use in wood and wet environments.

Wide ApplicationsLarge metal washer kit is widely used in mechanical engineering, motor vehicles, motorbikes, fence construction, furniture, household appliances and so on. Suitable for daily use and home maintenance, indoor and outdoor use.