Adopting standard ISO7380 specification, these round head hexagon socket screws are made of premium 304 stainless steel, also known as mushroom head and pan head screws, covering complete sizes from M3 to M12. The material features excellent rust resistance, corrosion resistance and oxidation resistance, suitable for long-term use in humid and outdoor environments. Precision integrated forming with smooth round head surface and standard neat internal thread, easy to install and disassemble. The round mushroom head design fits closely with the mounting surface, with beautiful appearance and stable fastening effect, no protruding edges after assembly. Widely applicable in mechanical equipment, furniture assembly, electronic appliances, communication equipment and hardware connection fields. Standard specifications are in sufficient stock, factory direct supply supports bulk wholesale, and non-standard customized length and special sizes can be processed according to requirements.