Phillips cross recessed pan head tapping screws DIN 7981C With gimlet point Steel case-hardened 450HV Zinc plated 4,8 x 13 Qty 100000Pcs Serrated lock washer DIN 6798A Form A, externally toothed Spring steel 350-425 HV Zinc plated M 6/6,4/11/0,7 Qty 50000Pcs Serrated lock washer DIN 6798A Form A, externally toothed Spring steel 350-425 HV Zinc plated M 5/5,3/10/0,6 Qty 50000Pcs