호칭 외경 외경허용차 두께 내경 무게 유효나사길이(mm)
mm mm mm mm mm kg/m 최대 최소
16 21.0 ±0.3 2.3 16.4 1.06 19 16
22 26.5 ±0.3 2.3 21.9 1.37 22 19
28 33.3 ±0.3 2.5 28.3 1.90 25 22
36 41.9 ±0.3 2.5 36.9 2.43 28 25
42 47.8 ±0.3 2.5 42.8 2.79 28 25
54 59.6 ±0.3 2.8 54.0 3.92 32 28
70 75.2 ±0.3 2.8 69.6 5.00 36 32
82 87.9 ±0.3 2.8 82.3 5.88 40 36
92 100.7 ±0.4 3.5 93.7 9.39 42 36
104 113.4 ±0.4 3.5 106.4 9.48 45 39