grub screw m3 m4 m5 m6 m8 metric thread hex allen socket head cap bolt internal hexagon drive cup point set screw assrotment kit 200pcs 304 stainless steel dana fred <b>packing include:</b> <br><br><b>name:set screw <br>material:304stainless steel <br>total quantity:200pcs</b> <br>304stainless set screw m3*3 20pcs <br>304stainless set screw m3*4 ;20pcs <br>304stainless set screw m3*10 ;20pcs <br>304stainless set screw m4*4; 20pcs <br>304stainless set screw m4*6 ;20pcs <br>304stainless set screw m5*5 ;20pcs <br>304stainless set screw m5*8; 20pcs <br>304stainless set screw m6*6 ;20pcs <br>304stainless set screw m6*10 ;20pcs <br>304stainless set screw m8*8 ;20pcs