PART NO. THREADE STECKO SIZE DIMENSIONS A B M N S1 2NY9-04L Z1/4"X18 1/4" 41.3 38 15.16 10.03 16 2NY9-06L Z3/8"X18 3/8" 48 42.5 20.17 14.02 22 2NY9-08L Z1/2"X14 1/2" 60 46 24.16 18.03 27 2NY9-12L Z3/4"X14 3/4" 66.5 51.5 29.16 24.03 36