We offer high-quality knurled cup point 304 stainless steel set screws compliant with DIN916K standard, also known as flower type hexagon headless grub screws and locking stop screws. Made of premium 304 stainless steel, these headless set screws feature outstanding rust resistance, corrosion resistance and high hardness, suitable for long-term use in humid and harsh working environments. Designed with knurled cup point and inner hexagon structure, the screws realize quick positioning, tight locking and anti-slip fastening, effectively preventing loosening during equipment operation. The headless flush mounting design keeps the surface neat without protrusion, ideal for precise limiting, fixing and locking assembly. Widely used in precision machinery, electronic equipment, instrumentation, mold accessories, automation parts and hardware industrial assembly. With standard thread size, precise workmanship and stable mechanical performance, we support complete specifications supply and bulk wholesale, providing reliable standard fastening solutions for industrial precision assembly and locking positioning.