Daisen Connection Standard
Thread Measurements Connection Ø (mm) L (mm)
Hose Connection
Standard hose bard for hose clamp
6.3 mm (1/4")
8 mm (5/16")
10 mm (3/8")
13 mm (1/2")
18 mm (5/8")
-
-
-
-
-
18.0
18.0
21.0
21.0
21.0
Nut Connection
Hose bard with nut cap for reusable and safe hose clamping
5 x 8 mm
6.5 x 10 mm
8 x 12 mm
9.5 x 13.5 mm
11 x 16 mm
-
-
-
-
-
15.0
17.0
19.0
21.0
25.0
R/Rc Thread Connection
Conical Pipe Thread Connection According to ISO 7/1
(other common descriptions are BSPT, Kr)

Male:
ie. R 1/4"

Female: 
ie. Rp 1/4" (parallel)
ie. Rc 1/4" (taper)

Male Thread
R 1/8"
R 1/4"
R 3/8"
R 1/2"
R 3/4"

Female Thread
Rc 1/8"
Rc 1/4"
Rc 3/8"
Rc 1/2"
Rc 3/4"

10.2
13.6
17.2
21.7
27.1


8.3
11.0
14.5
18.0
23.5

7.4
11.0
11.0
15.0
16.3


7.4
11.0
11.4
15.0
16.3
G Thread Connection
Cylidrical Pipe Thread Connection According to ISO 228/1
(other common descriptions are BSP, R)

Male:
ie. G 1/4"

Female (ISO 1179):
ie. G 1/4"

Male Thread
G 1/8"
G 1/4"
G 3/8"
G 1/2"
G 3/4"

Female Thread
G 1/8"
G 1/4"
G 3/8"
G 1/2"
G 3/4"

9.6
13.0
16.5
20.8
26.3


8.75
11.8
15.25
19.0
24.5

8.0
10.0
10.0
12.0
12.0


7.4
11.0
11.4
15.0
16.3
NPT Thread Connection
National Pipe Thread American Standard According to ANSI/ASME B 1.20.1

Male:
ie. 1/4" NPT

Female:
ie. 1/4" NPT

Male Thread
1/8" NPT
1/4" NPT
3/8" NPT
1/2" NPT
3/4" NPT

Female Thread
1/8" NPT
1/4" NPT
3/8" NPT
1/2" NPT
3/4" NPT

10.5
14.0
17.5
21.8
27.1


8.5
11.0
14.5
18.0
23.0

6.7
10.2
10.4
13.6
13.9


6.9
10.0
10.3
13.6
14.1
 

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