5/8 Sucker rod coupling
Nominal
diameter
Collar diameter
length
Square length of
wrench
Square width of
wrench
(ins-mm)
(ins-mm)
(ins-mm)
mm
mm
5/8(16)
38.1(1.500)
101.6(4.000)
31.8
34.9
4/3(19)
41.3(1.625)
101.6(4.000)
31.8
38.1
7/8(22)
46.0(1.812)
101.6(4.000)
31.8
41.3
1(25)
55.6(2.187)
101.6(4.000)
31.8
47.6
1 1/8(29)
60.3(2.375)
114.3(4.500)
41.3
53.9