管カン用ヨウ平行ヘイコウねじ（G(=PF）)
			単位 mm
呼　び	下シタ穴アナドリル径ケイ	めねじ内径ナイケイ
		Max.	Min.
G 1/16 ‐28	6.7	6.843	6.561
G 1/8 ‐28	8.7	8.848	8.566
G 1/4 ‐19	11.7	11.89	11.445
G 3/8 ‐19	15.2	15.395	14.95
G 1/2 ‐14	19	19.172	18.631
G 5/8 ‐14	21	21.128	20.587
G 3/4 ‐14	24.5	24.658	24.117
G 7/8 ‐14	28.2	28.418	27.877
G 1 ‐11	30.6	30.931	30.291
G 1'1/8 ‐11	35.2	35.579	34.939
G 1'1/4 ‐11	39.2	39.592	38.952
G 1'1/2 ‐11	45	45.485	44.845
G 1'3/4 ‐11	51	51.428	50.788
G 2 ‐11	57	57.296	56.656
G 2'1/4 ‐11	63	63.392	62.752
G 2'1/2 ‐11	72	72.866	72.226
G 2'3/4 ‐11	78.5	79.216	78.576
G 3 ‐11	85	85.566	84.926
G 3'1/2 ‐11	97	98.012	97.372
G 4 ‐11	─	110.712	110.072
G 4'1/2 ‐11	─	123.412	122.772
G 5 ‐11	─	136.112	135.472
G 5'1/2 ‐11	─	148.812	148.172
G 6 ‐11	─	161.512	160.872