M3x9 Steel Self-Lifting Washer Assembly Screw

Combination screws, also known as SEMS fasteners, are pre-assembled integrated fasteners that permanently combine a screw with flat, spring or toothed washers via crimping. No on-site washer assembly needed, significantly improving efficiency and avoiding washer loss or misalignment. Key advantages include high efficiency, reliable locking and stable load distribution. Main types: 2-piece/3-piece, Phillips pan head/hex washer head, carbon steel/stainless steel. Sizes M2–M12, compliant with GB9074 and ISO 3506. Widely used in electronics, furniture, machinery, automotive and construction. Custom lengths, coatings, head types and thread-locking (e.g., adhesive) available for diverse applications.

Combination screws, also known as SEMS fasteners, are pre-assembled integrated fasteners that permanently combine a screw with flat, spring or toothed washers via crimping. No on-site washer assembly needed, significantly improving efficiency and avoiding washer loss or misalignment. Key advantages include high efficiency, reliable locking and stable load distribution. Main types: 2-piece/3-piece, Phillips pan head/hex washer head, carbon steel/stainless steel. Sizes M2–M12, compliant with GB9074 and ISO 3506. Widely used in electronics, furniture, machinery, automotive and construction. Custom lengths, coatings, head types and thread-locking (e.g., adhesive) available for diverse applications.

Micro screws, also known as miniature screws, are precision fasteners with a diameter ranging from 0.3mm to 5mm, designed for space-constrained and high-precision assembly scenarios. Our custom micro screws adopt advanced Swiss CNC machining technology, with tight tolerances of ±0.003mm, ensuring stable performance and perfect fit in various delicate equipment. We offer diverse customization options for materials, head types, thread pitches and surface treatments, covering industries such as electronics, medical devices, aerospace and watchmaking. As a professional custom micro screws manufacturer, we adhere to ISO 9001 and ISO 13485 standards, providing high-quality, reliable micro fasteners to global customers.

Micro screws, also known as miniature screws, are precision fasteners with a diameter ranging from 0.3mm to 5mm, designed for space-constrained and high-precision assembly scenarios. Our custom micro screws adopt advanced Swiss CNC machining technology, with tight tolerances of ±0.003mm, ensuring stable performance and perfect fit in various delicate equipment. We offer diverse customization options for materials, head types, thread pitches and surface treatments, covering industries such as electronics, medical devices, aerospace and watchmaking. As a professional custom micro screws manufacturer, we adhere to ISO 9001 and ISO 13485 standards, providing high-quality, reliable micro fasteners to global customers.