круглая голова винта

round head screw about the product:the product can be widely used in the field of hardware about our service:weproduce small hardware parts,also we can do OEM,send us drawings,we can do it in a short time also in good quality because we have advanced equipments and learned engineer. no matter the design is similar or totally different from the product you are looking for ,you can also contact us,because we can do according to your requirments.everything made of iron. About thesurface treatment:it was color zinc plated,it has a nice looking and good quality.