Socket head cap screw. Material: Steel. Dimensions: M4 x 25. Hex socket. TYPE: THREADED SCREWS THREAD: M4 X 0.7 DIAMETER: 4MM LENGTH: 25MM HEAD: CYLINDRICAL HEAD DRIVE: ALLEN SURFACE: GALVANIZED Material: Steel DIN: 912 DIN EN ISO: 4762 QUALITY CATEGORY: 8.8 SEAL/WASHER: WITHOUT