나사산의 종류별 표준

나사산
(Thread)
 모양
(Measurements)
연결부
Connection
지름
Ø(mm)
길이
L(mm)

일반 호스 연결용
(호스 연결후 클램프 필요)

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

스트림라인용 호스 연결용
(별도의 클램프가 불필요한)

Stream-Line 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

CEJN 록킹 방식 호스 연결용 
(클램프불필요)

CEJN-Lock Connection
For special non-clamping hose

1/4"
3/8"
1/2"
-
-
-
19.0
23.0
26.0

UNF 나사 (ISO68, ANSI B1.1표준)

UNF Thread Connection
Unified threads according to ISO 68, ANSI B1.1

Male:
ie. 9/16"-18 UNF

Female:
ie. 7/16"-20 UNF

Female, SEA O-Ring Boss


숫나사
7/16"-20 UNF
7/8"-14 UNF



암나사
7/16"-20 UNF
9/16"-18 UNF
3/4"-16 UNF
1 1/16"-16 UNF
1 5/16"-12 UNF

11.0
22.0




9.8
12.9
17.5
26.8
33.1

13.3
15.5




11.5
12.7
14.3
19.0
19.0

미터법 나사 (ISO 68, ISO 724)

Metric Thread Connection
Metric threads according to ISO 68/ISO 724

Male:
ie. M16x1.5

Female:
ie. M16x1.5


숫나사
M10x1.25
M12x1.5
M14x1.5
M16x1.5
M22x1.5

암나사
M16x1.5


9.8
11.85
13.85
15.85
21.85


14.5

9.0
13.0
13.0
8.81
15.7


9.0

R/Rc 나사 (통상 BSPT 나사)
한국/일본등에서 범용 사용

R/Rc Thread Connection
Conical Pipe Thread Connection According to ISO 7/1
(other common descriptions are BSPT, Kr)

Male:숫나사 경우 표시
ie. R 1/4"

Female: 암나사 경우 표시
ie. Rp 1/4" (평형하게 가공한것)
ie. Rc 1/4" (테이퍼지게 가공한것)


숫나사
R 1/8"
R 1/4"
R 3/8"
R 1/2"
R 3/4"

암나사
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 나사 (통상 BSP 나사)

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"


숫나사
G 1/8"
G 1/4"
G 3/8"
G 1/2"
G 3/4"

암나사
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 나사 (통상 미국식표준)

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


숫나사
1/8" NPT
1/4" NPT
3/8" NPT
1/2" NPT
3/4" NPT

암나사
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