2024 Big sale 50Pcs Flat Hex Socket Screw M3 Pure Copper Countersunk Head Industrial Hardware ToolM3 x 8

1、This hex socket screw has a standard head with uniform force and good fastening effect. 2、These hex screws have deep threads uniform pitch clear texture and high occlusion. 3、Made of pure copper it is not easy to rot and moisture and the exterior is smoothly and easy to oxidize. 4、These countersunk hex socket screws have high hardness and are not easily deformed. 5、This flat head hex socket screw can fix components industrial and construction fasteners.