Chip board screw 1.Standard:GB,DIN,ANSI,BS,JIS 2.Material: ... 3.D:M2.5-M6 4.L:10-300mm Chip board screw 1.Standard:GB,DIN,ANSI,BS,JIS2.Material:1018 ... our competetivegood service,high quality,fast delivery,we will have a long distance business.Any questions,pls feel free let us ...