直接头

Nominal	Socket Type			Structural Diameter
SIZE	d1	d2	I	D	d	L
1/2"	21.40	21.25	24.00	29.00	16.00	52.00
3/4"	26.75	26.58	27.00	35.00	22.00	58.00
1"	33.52	33.28	30.00	44.00	30.00	64.00
1-1/4"	42.28	42.05	34.00	54.00	38.00	72.00
1-1/2"	48.4	48.12	37.00	60.00	43.00	78.00
2"	60.45	60.18	40.00	73.00	54.00	84.00
2-1/2"	73.30	72.85	46.50	88.00	67.00	98.00
3"	89.25	88.70	50.00	105.00	82.00	107.00
4"	114.60	114.10	60.00	132.00	106.00	126.00
5"	141.50	141.10	69.00	162.00	133.00	143.00
6"	168.50	168.00	79.00	191.00	158.00	168.00
8"	219.80	218.70	105.00	261.00	200.00	215.00
10"	273.81	272.67	128.00	305.80	265.00	266.00