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| TYPE | SUB COUPLING | ||||
| (T,SM) | SPEC(in) | O.D. +0.13(＋0.005)-0.25(-0.010)(in/mm) | Length(in) | Outer Size(in) O.D.*Length | Weight(kg) |
| full size | 5/8"*3/4" | 1 5/8(41.28) | 4.500 | 1.625×4.500 | 0.76 |
| 3/4"*7/8" | 1 13/16(46.04) | 4.500 | 1.812×4.500 | 0.92 | |
| 7/8"*1" | 2 3/16(55.56) | 4.500 | 2.187×4.500 | 1.43 | |
| 1"*1-1/8" | 2 3/8(60.33) | 5.000 | 2.375×5.000 | 1.62 | |
| slim hole | 5/8"*3/4" | 1-1/2(38.1) | 4.500 | 1.500×4.500 | 0.45 |
| 3/4"*7/8" | 1-5/8(41.3) | 4.500 | 1.625×4.500 | 0.61 | |
| 7/8"*1" | 2(50.8) | 4.500 | 2.000×4.500 | 1.10 | |
| 1"*1-1/8" | 2-1/8(55.6) | 5.000 | 2.187×5.000 | 1.31 |
API sub sucker rod coupling
