A4 M4 X 10 C/NUT RED/CSK 316 ST/ST is a high-quality fastener engineered for durability and reliability. Designed for professional and industrial applications, it provides a secure and lasting connection. The flanged or countersunk design ensures a flush and firm fit, reducing loosening over time. Suitable for use in construction, automotive, and engineering projects, it offers excellent resistance to corrosion and mechanical stress.