Metric A4 Stainless Spring Washers DIN 7980 Metric A4 marine grade stainless steel square section spring washers to DIN 7980. These spring lock washers are designed for use with metric bolts, screws and nuts where a square section washer is required. Manufactured from A4 stainless steel, these... £0.24 (Inc. VAT) £0.20 (Ex. VAT) Choose Options Compare