Cross Recessed Large Flat Round Head CM Screws

The cross recessed large flat head screw is a fastener with a cross recessed hole design on the head and a flat or flat top. 
1. Features ‌
Cross recessed hole design‌: The head needs to be operated with a wrench of the corresponding specification. It is not easy to slip during installation and is suitable for scenes with limited space. ‌
Flat head structure‌: The ultra-thin flat head design makes it flush with the contact surface after installation, and the appearance is neat and beautiful, especially suitable for occasions with high requirements for surface flatness. ‌
High-strength material‌: Common materials include 304/410 stainless steel (corrosion-resistant) and carbon steel (strong economy). Some products can reach 12.9 grade high strength, suitable for high-load environments. ‌
2. Standards and specifications ‌
Standard‌: ‌CM

Specifications ‌: M2, M2.5, M3, M4, M5, M6
3. Application scenarios ‌
Furniture assembly‌: Used to connect wooden or metal parts, taking into account both stability and aesthetics, such as cabinets and baby cribs. ‌
Machinery manufacturing‌: Suitable for connecting parts of machine tools, automobiles and other equipment, and the 12.9 grade high-strength model can withstand extreme pressure‌. ‌
Construction engineering‌: Used for the installation of outdoor facilities such as steel structures and billboards, and the stainless steel material has excellent weather resistance‌.
IV. Purchase suggestions
1. Material selection: 304/316 stainless steel (rust-proof) is preferred for humid environments; carbon steel or galvanized materials (cost-effective) are optional for conventional environments.
2. Strength matching: 12.9 grade is suitable for heavy-duty machinery; 8.8 grade meets general industrial needs.
3. Specification parameters: The thread length needs to be selected according to the thickness of the connector (such as M5×20 means diameter 5mm, length 20mm)