PART NO. THREAD COPPERWASHER DIMENSIONS E F F A B L S1 5TB-04G/SP R1/4"x19 G1/4"X19 DP-B04G 14.5 11 28.5 19 5TB-06-04G/SP R3/8"x19 G1/4"X19 DP-B04G 15 11 29 19 5TB-06-08G/SP R3/8"x19 G1/2"X14 DP-B08G 15 17 37 27 5TB-08G/SP R1/2"x14 G1/2"X14 DP-B08G 20 17 42 27