PART NO. STECKO SIZE DIMENSIONS LEFT RIGHT D1,D2 L M1,M2 N1,N2 7Y-04 1/4" 1/4" 25 59 15.16 10.03 7Y-06 3/8" 3/8" 32 59 20.17 14.02 7Y-08 1/2" 1/2" 35 59 24.16 18.03 7Y-12 3/4" 3/4" 45 59 29.16 24.03 7Y-16 1" 1" 55 68 39.12 31.01 7Y-20 1.1/4" 1.1/4" 60 68 46.15 38.02 7Y-24 1.1/2" 1.1/2" 70 80 55.22 47.02 7Y-32 2" 2" 80 80 64.21 56.00