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英制螺纹标准规格表55°(非密封)
英制螺纹标准规格表55°(非密封)
(GB/T 7307-2001)
尺寸代号、每英寸牙数、螺距、螺纹直径
（in英寸）代号（n）牙数（p）螺距大径D d小径 D1 d1 G1/16"280.9077.723 6.561
G1/8"280.9079.7288.566
G1/4"19 1.33713.15711.445
G3/8"19 1.33716.66214.95
G1/2"14 1.81420.95518.631
G5/8"14 1.81422.91120.587
G3/4"14 1.81426.44124.117
G7/8"14 1.81430.20127.877
G1"11 2.30933.24930.291 G1-1/8"11 2.30937.89734.939 G1-1/4"11 2.30941.9138.952 G1-1/2"11 2.30947.80344.845 G1-3/4"11 2.30953.74650.788
G2"11 2.30959.61456.656 G2-1/4"11 2.30965.7162.752 G2-1/2"11 2.30975.18472.226 G2-3/4"11 2.30981.53478.578
G3"11 2.30987.88484.926 G3-1/2"11 2.309100.3397.372
G4"11 2.309113.03110.072
G5"11 2.309138.43135.472
G6"11 2.309163.83160.872
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