YFS 12.9 Grade Screw ISO7380 M3 Round Head Hex Socket Screw

YFS 12.9 Grade Screw ISO7380 M3 Round Head Hex Socket Screw, Alloy Steel Metric Class 12.9, Black Oxide, Hex Socket, M3 Round head Allen Bolt screw, Length: 5mm 6mm 8mm 10mm 12mm 14mm 16mm 18mm 20mm 25mm 30mm, Full Thread. The best strength and beautiful color.