The Unifix Machine Screws Slotted Cheese Head DIN 84 BZP - M4 x 40 are designed for reliable fastening in various applications. Made from high-quality materials, these screws ensure durability and strength. High-Quality BZP Finish for Corrosion ResistanceSlotted Cheese Head Design for Easy InstallationStandard DIN 84 Specification for CompatibilityIdeal for Use in Wood and Metal ApplicationsVersatile M4 x 40 Size for Various Projects | Unifix Machine Screws Slotted Cheese Head M4 x 40 in Silver