HT Allen Socket CSK Screw:M4 x 25 - DIN 7991/12.9/Black/Full Thread

This high-tensile fastener is an M4 x 25 mm metric screw manufactured from steel with a property class rating of 12.9. It features an Allen socket drive head and complies with the DIN 7991 standard for countersunk head screws. The entire shank length is threaded, providing maximum engagement depth within the mating material. A black surface finish is applied to the component. Buyers select this specific grade for applications requiring superior shear strength compared to standard property classes. Choose this fastener when a flush surface finish, high load-bearing capacity, and secure drive retention are required in tight mechanical assemblies.