M4x25 Countersunk Machine Screws, Phillips Bolts, Cross Recessed Flat Head Fastener, fully Threaded 4mm Zinc Plated Screw Suitable for Metal, Construction, Installation, DIY (Pack of 50)

PH COUNTERSUNK SCREWS: The screw has a round head with a PH bit drive. Metric machinescrews are designed for metal to metal applications requiring a pre-drilled hole and a mating metric nutor the screwto thread into. These screws are usually fully threaded with machine threadsand blunt point. The recommended pre-drilledhole sizes vary depending on the diameter of the screw to be used but should be slightly larger in diameter than themajor (maximum) thread diameter. USABILITY: Metric DIN 965 is a cross recessed (Phillips) flat countersunk machine screws are used for applications where the head must be flush with the mating surface of the substrate. Preloading must normally be held to such a level that the combined load in the bolt does not exceed the bolt material’s tensile yield limit. (correct size screwdriver needed) ZINC PLATED ALLOY STEEL: Hardware commonly used in mostly dry environments. The zinc plating offers temporary rust protection, but once it wears away the steel will rust. SUITABLE FOR: General purpose engineering, macinery, automotive panel fixing, building, sheet metal, furniture, electronic plastic fabrication, DYI. DIMENSIONS: Diameter M4, lenght 25, head diameter 7.5, thread length 22, head height 2.2, thread step 0.7.