High-quality Combi Washer Screw supplied by Valaki Enterprise, Nashik — ISO certified, bulk supply to Nashik, Pune & Mumbai.
Combi washer screws incorporate an integrated serrated flange washer directly beneath the head, eliminating the need for a separate washer. The serrations bite into the mating surface to provide exceptional resistance to loosening under vibration and dynamic loads.
These screws are ideal for sheet metal fabrication, automotive sub-assemblies, HVAC systems and structural connections where secure, vibration-resistant fastening with improved load distribution is required.
Complete material and dimensional specifications for Combi Washer Screws
| Parameter | Details |
|---|---|
| Material | Carbon Steel / Stainless Steel (SS 304 / SS 316) / Alloy Steel |
| Screw Type | Combi Washer Screw |
| Diameter Range | M4 to M10 |
| Length Range | 10 mm to 70 mm |
| Head Type | Hex / Pan with Integrated Serrated Flange Washer |
| Drive Type | Phillips / Hex / Torx |
| Thread Type | Metric Coarse |
| Surface Finish | Zinc Plated / BZP / Stainless Steel Plain Finish |
| Standard | DIN 6921 |
| Tensile Strength | 500 – 1000 MPa (depending on material grade) |
| Yield Strength | 300 – 850 MPa |
| Hardness | HRB 70 – HRC 35 |
| Operating Temperature | -40°C to +300°C (varies by material & coating) |
| Packaging | Boxes / Bulk Packaging / Custom Branding |