Ball point screws is used to attach two objects by twisting together into a block, we supply all sizes, ball point screw can withstand tensile loads very well, has high strength, Stable and long-lasting, very simple and convenient to use and adjust without requiring complicated technologies! There are 2 types of ball point screw: black or stainless steel, with different materials, hardness, specifications ... so please contact us directly for advice on choosing the type to use!