10.9 Alloy Steel Material, 0.5mm Thread Pitch, Hex Key Hex Socket Countersunk Flat Head Key Bolts Screws M3 x 50mm.
Countersunk bolts is anti-corrosion,rustless,non-pollution and high-hardness.
It is widely used in industrial.
Countersunk bolts is anti-corrosion,rustless,non-pollution and high-hardness.
It is widely used in industrial.