BSPP
DASH SIZE

NOMINAL
THREAD SIZE

(inches)

STRAIGHT ADAPTER / LOCKNUT TORQUE
FT./LBS.
NEWTON METERS
2
1/8-28
13-15
18-20
4
1/4-19
19-23
25-30
6
3/8-19
33-40
45-55
8
1/2-14
55-70
75-95
12
3/8-14
103-118
140-160
16
1-11
162-184
220-250
20
1 1/4-11
170-192
230-260
24
1 1/2-11
258-347
350-470