1. CITIC MILL LINER BOLTS 1-1/2" X 7- 3/4" C/W SELF-LOCKING NUTS WITH TEFLON SEAL 55MM A/F. MATERIAL - 8.8 HIGH TENSILE THREAD LENGTH -4.5". THREAD TYPE- BSP COUSE. OVERALL LENGTH - 7" HEAD - 3" X 1-3/4" QTY:575