M4 (Thread Dia. 4mm) Torx Pan Head Machine Screws Assortment Kit,Pack of 80-piece 6 Lobe Pan Head Bolts, Each Size 10-piece Thread Diameter: 4 mm, Thread Pitch: 0.7 mm, Right Hand, Full Thread Kit contains: M4 x 6mm, M4 x 8mm , M4 x 10mm, M4 x 12mm,M4 x 16mm, M4 x 20mm, M4 x 25mm, M4 x 30mm Drive Style : Star Key,Star Bit Material : Stainless Steel,Come with Box