I’m here to help you secure assemblies with the combined sems screw with square washer, a smart choice for heavy-duty fastenings. As a reliable source for Wholesale orders and Manufacturers alike, I provide components that blend a strong SEMS screw with a precisely sized square washer to improve load distribution and reduce loosening. The square washer seats flat, shields surfaces, and works with standard drivers for fast, snag-free installation. Made from high-strength steel with zinc plating (or stainless options available), this combo resists corrosion in harsh environments. We stock a range of diameters and lengths to fit your project, and we can offer bulk pricing, fast lead times, and dedicated support. If you want consistent quality, tight tolerances, and scalable supply for your production line, this is the one to choose.
Combined SEMS screws with square washers represent a decisive step in fastening technology where efficiency meets reliability in 2025. This integrated part combines self-securing features with square-washer stability, delivering faster assembly, improved torque distribution, and reduced loosening under vibration. Its compact footprint suits electronics enclosures, automotive modules, lighting fixtures, and precision equipment, enabling smoother high-speed lines across diverse industries. For global buyers, the appeal lies in consistent quality, material options, and scalable production. A supplier offering traceability, stringent QA, flexible MOQs, and packaging customization can shorten lead times and lower total cost by reducing part counts and rework. With intelligent sourcing in 2025, partnering for design alignment, compliance, and sustainability goals ensures resilient, global procurement.
| Screw Size | Length (mm) | Thread Pitch (mm) | Head Type | Washer ID (mm) | Washer OD (mm) | Material | Finish | Tensile Strength (MPa) | Standard |
|---|---|---|---|---|---|---|---|---|---|
| M4×8 | 8 | 0.70 | Hex Socket Cap | 6.0 | 11.0 | Stainless Steel A2-70 | Passivation | 520 | ISO 4762; DIN 912 |
| M4×12 | 12 | 0.70 | Hex Socket Cap | 6.0 | 11.0 | Stainless Steel A2-70 | Passivation | 520 | ISO 4762; DIN 912 |
| M5×10 | 10 | 0.80 | Hex Washer Head | 8.0 | 18.0 | Stainless Steel A2-70 | Plain | 520 | ISO 4762 |
| M6×16 | 16 | 1.00 | Hex Washer Head | 10.0 | 22.0 | Carbon Steel | Zinc Plated | 700 | ISO 4762 |
| M6×25 | 25 | 1.00 | Hex Washer Head | 10.0 | 22.0 | Carbon Steel | Zinc Plated | 700 | ISO 4762 |
| M8×20 | 20 | 1.25 | Hex Washer Head | 13.0 | 28.0 | Stainless Steel A4-80 | Passivation | 650 | DIN 912; ISO 4762 |
| M8×40 | 40 | 1.25 | Hex Washer Head | 13.0 | 28.0 | Stainless Steel A4-80 | Passivation | 700 | ISO 4762 |
| M10×30 | 30 | 1.50 | Hex Washer Head | 15.0 | 32.0 | Stainless Steel A4-80 | Passivation | 750 | ISO 4762 |