Item Material: 12.9 grade steel Size: d (thread diameter) x L (thread length) Kindly remind: most of the bolt is full threada small part of lengthened bolt are half thread in M3when the thread longger than 25mm, it is part thread in M4when the thread longger than 25mm, it is part thread in M5when the thread longger than 25mm, it is part thread in M6when the thread longger than 30mm, it is part thread in M8when the thread longger than 35mm, it is part thread in M10when the thread longger than 40mm, it is part thread Metric thread diameter: M2 (2mm)/M2.5 (2.5mm)/ M3(3mm)/M4 (4mm)/M5 (5mm) M6 (6mm)/M8 (8mm) /M10(10mm) Metric thread pitch: 0.4mm(M2)/0.45mm (M2.5)/0.5mm(M3) / 0.7mm(M4)/0.8mm(M5) 1mm(M6)/1.25mm(M8) / 1.5mm (M10) Thread length: 4mm-150mm Product display