284 HEX2.5/2.5 284 HEX3.0/3.0 284 HEX4.0/4.0 284 PH1/PH2 284 PZ1/PZ2 284 PZ2/PZ3 284 SL4.0/6.0 284 TORX10/15. 284 TORX20/25 284 TORX6/8