06 Series Ø 4.8 mm | Countersunk Head | Steel | ERSCSK06-19G 28.58 − 31.75 mm Grip Range, Zinc Finish
08 Series Ø 6.4 mm | Countersunk Head | Steel | ERSCSK08-19G 28.58 − 31.75 mm Grip Range, Zinc Finish