Material: Carbon Steel.
Head Diameter: 9mm / 0.35 inch.
Pitch: 0.7mm / 0.027 inch.
Thread Diameter: 4mm / 0.15 inch ，Thread Length: 8mm / 0.31 inch.
Functional house tool:flat head screws with good holding power fit for many woodworking and DIY jobs,fasteners for the furniture and cabinet industry.
Colour: Black
Size: M4x8mm(20Pcs)