LIGHTLY OILED THREADS

BSP Hydraulic Adaptor Connections

Nominal Size of Nut
BSP Size	Tightening Torque
	Nm	Lbsf/ft
1/8	17	12
1/4	34	25
3/8	47	35
1/2	102	75
5/8	122	90
3/4	149	110
1	203	150
1-1/4	305	225
1-1/2	305	225
2	400	296

O.R.F.S Hydraulic Hose Connections

Nominal Size of Nut
SAE Dash	Thread	Equivalent BSP Size	Tightening Torque
			Nm	Lbsf/ft
-4	9/16-18	1/4	24	18
-6	11/16-16	3/8	33	24
-8	13/16-16	1/2	44	35
-10	1-14	5/8	58	43
-12	1-3/16-12	3/4	84	62
-16	1-7/16-12	1	115	85
-20	1-11/16-12	1-1/4	189	140
-24	2-12	1-1/2	244	180

Metric

Nominal Size of Nut		Tightening Torque
		Nm	Lbsf/ft
	M10	18	13
	M12	20	15
	M14	25	19
	M16	45	33
	M18	50	37
	M20	70	52
	M22	75	55
	M26	110	81
	M27	130	96
	M33	220	162
	M42	230	170
	M48	350	258

JIC & SAE Connections

Nominal Size of Nut		Tightening Torque
		Nm	Lbsf/ft
	5/16-24	10	7
	3/8-24	10	7
	7/16-20	14	10
	1/2-20	20	15
	9/16-18	22	20
	5/8-18	27	20
	3/4-16	48	35
	7/8-14	81	60
	1-1/16-12	108	79
	1-3/16-12	136	100
	1-5/16-12	148	108
	1-5/8-12	173	127
	1-7/8-12	216	158
	2-1/2-12	334	245

Note
1. Tightening torques relate to counterpart made of steel.

2. As a general rule, for steel adaptor with aluminium counterpart you can use torque figures 50% of those shown in the table. However, the coeficient of friction between the materials makes torque wrenches unreliable by a factor of 35%.