Material: Carbon Steel 

Surface: Blue zinc-plated / Black zinc-plated / Nickel-plated

Thread diameter: 3mm(M3) / 4mm(M4) / 5mm(M5) / 6mm(M6) / 8mm(M8) / 10mm(M10)

Thread pitch: 0.5mm(M3) / 0.7mm(M4) / 0.8mm(M5) / 1.0mm(M6) /1.25mm(M8) / 1.5mm(M10)

Model Number: GB806

Package Include: 1 to 5 Pcs x Thumbnuts