Description 1. Model no.: din125a 2. Spring washer type: standard 3. Material: low carbon steel 4. Origin: ningbo 5. Trademark: sd Features 1. Type: flat gasket 2. Surface treatment: plain, black, zinc plated 3. Diameter: m3-m100 Specification 1. Stander:plain washer din125a 2. Grade: din125a 3. Size: 1/2'' to 1 1/2'' 4. Diameter: m3-m100 Competitive advantages 1. Top quality control 2. Competitive price 3. Various of design 4. Oem accepted 5. Customer's design and logo are welcome