I work with {Wholesale} and {Manufacturers} who demand reliable fasteners. Our Phillips Rounded Head Thread-Forming Screws m4 are built for smooth driving and secure grip in softer materials. The rounded head gives a clean finish, while the thread-forming action creates threads as you screw in, cutting down tapping steps. I offer consistent counts, bulk pricing, and fast lead times to keep your production line humming. Finished options include zinc plated for general use, with coatings available for extra corrosion resistance. Packaging tailored for bulk orders or kits makes reordering easy, and I can support OEM or private-label requests if you’re a manufacturer. With strict quality control and a proven track record, these screws meet the needs of critical assembly lines without surprises. Let me know your required quantity and delivery schedule, and I’ll quote you promptly.
Rounded-head thread-forming screws in M4 offer reliable, vibration-resistant fastening for metal and hard plastics. The rounded head yields a clean appearance and flush seating, while the thread-forming design creates strong threads without pre-tapping, reducing assembly steps and tool wear. They are suited for global production lines and trusted by many leading brands for consistent quality and scalable supply. Global buyers seek material options such as stainless steel, alloy steel, and coated finishes (zinc-plated, black oxide) for corrosion resistance. With tight tolerances, controlled heat treatment, and refined finishing, these screws deliver smooth driving and reliable torque. Compliance with RoHS, REACH, and ISO 9001 minimizes risk across markets. From a southern China manufacturing hub to worldwide logistics, a robust supply chain ensures reliable lead times and flexible lot sizes. Clear documentation, traceability, and rigorous quality checks empower procurement teams to manage risk and simplify supplier consolidation. A single, dependable source for M4 rounded-head thread-forming screws can streamline global sourcing and production schedules.
| Variant | Material | Finish / Coating | Head Dia (mm) | Length (mm) | Thread Length (mm) | Pitch (mm) | Drive | Tensile Strength (MPa) | Common Applications |
|---|---|---|---|---|---|---|---|---|---|
| V1 | Stainless Steel (A2) | Passivated | 6.0 | 6 | 5 | 0.70 | Phillips | 520–700 | Enclosures and electronics housings |
| V2 | Stainless Steel (A2) | Polished | 6.2 | 8 | 7.5 | 0.70 | Phillips | 520–700 | Sheet metal panels in consumer equipment |
| V3 | Carbon Steel | Zinc Plated | 6.0 | 10 | 8 | 0.70 | Phillips | 450–600 | General metal assembly |
| V4 | Carbon Steel | Black Oxide | 6.5 | 16 | 12 | 0.70 | Phillips | 450–600 | Industrial equipment and machinery |
| V5 | Stainless Steel (A4 / 316) | Natural Passivation | 6.0 | 20 | 14 | 0.70 | Phillips | 550–760 | Marine-grade or corrosive environments |
| V6 | Stainless Steel (A2) | Electropolished | 5.8 | 25 | 20 | 0.70 | Phillips | 520–700 | Heavy sheet metal brackets |