Spring washers are split and formed so they act as a compression spring under the nut, maintaining bolt tension and resisting loosening under vibration. Standard in machinery, transmission and transport assemblies.
Supplied in bulk to distributors, importers and hardware brands worldwide, including private-label packaging in the customer's own branding. Non-standard sizes and made-to-drawing variants are produced to order, with a material test certificate on every consignment.
| Product Type | Single-coil split spring lock washer |
| Standards | DIN 127 (Form A / B), DIN 7980, IS 3063, ASME B18.21.1 |
| Material Grades | Spring steel, hardened and tempered; SS 304; SS 316; phosphor bronze on request |
| Size Range (Metric) | M3 to M48 |
| Size Range (Imperial) | 6 to 1-1/2" |
| Thickness | 0.8 mm to 9 mm, per standard and size |
| Finish | Plain / oiled, black phosphate, zinc plated (baked for embrittlement relief), mechanically galvanized |
| Custom Options | Heavy and extra-heavy sections, square ends (Form B), made to drawing |
| Certification | Material Test Certificate, EN 10204 3.1 |
| Packaging | Boxed in standard counts, bulk cartons, or private label to customer specification |
