技術資料    管用ねじ
                                       戻る
 

管用ねじの呼びと下穴径  mm
ねじの呼び 管用平行ねじ G 管用テーパねじ
下穴径最小
(ひっかかり率)
下穴径最大(%) Rc
(PT)
PS
1/8-28 8.57 (100%) 8.80 (80%) 8.2 8.5
1/4-19 11.44 (〃) 11.87 (75%) 10.9 11.4
3/8-19 14.95 (〃) 15.38 (〃) 14.4 14.9
1/2-14 18.60 (〃) 19.10 (80%) 18.0 18.5
5/8-14 20.60 (〃) 21.00 (〃) - -
3/4-14 24.10 (〃) 24.60 (〃) 23.0 24.0
7/8-14 27.90 (〃) 28.30 (〃) - -
1 -11 30.30 (〃) 30.90 (〃) 29.0 30.0
1 1/8-11 34.90 (〃) 35.50 (〃) - -
1 1/4-11 39.00 (〃) 39.40 (85%) 38.0 39.0
1 3/8-11 41.40 (〃) 42.00 (80%) - -
1 1/2-11 44.80 (〃) 45.40 (〃) 44.0 45.0
1 5/8-11 49.00 (〃) 49.60 (〃) - -
1 3/4-11 50.80 (〃) 51.40 (〃) - -
2 -11 56.60 (〃) 57.20 (〃) 55.0 56.0
2 1/2-11 72.20 (〃) 72.80 (〃) 71.0 72.0
3 -11 84.90 (〃) 85.50 (〃) 83.0 85.0
4 -11 110.10 (〃) 110.70 (〃) - -


                                  流体工業株式会社