These DIN551 and GB73 standard slotted flat end set screws are made of high-quality stainless steel, featuring excellent rust resistance, corrosion resistance and durability, suitable for long-term use in humid, mechanical and precision assembly environments. Adopting a slotted drive design and flat point structure, these headless grub screws have strict dimensional accuracy and stable locking performance, which can effectively prevent loosening under vibration and realize safe, flush positioning and fixing. The flat end design avoids damaging the mating parts during installation, making them ideal for precise positioning and anti-loose locking. Widely used in mechanical equipment, instrumentation, molds, furniture hardware and small precision assemblies, these slotted flat end locking screws provide reliable positioning for various industrial fastening scenarios. Each screw is strictly inspected to ensure consistent thread precision and mechanical performance. With factory-direct supply and complete specifications available, these DIN551 GB73 stainless steel slotted set screws are the preferred choice for global hardware wholesalers and industrial manufacturers, providing cost-effective precision fastening solutions.