ねじ規格一覧表 | オーエスジー

Types of screws
Type

symbol
Abbreviation

standard
Standard

Screw Thread Angle
Thread angle

Nominal diameter range
Size range

Grade of screw
Tolerance class

Gauge Standards
Standard for screw thread gauge

Metric Thread
Metric screw threads

M

JIS B 0205
JIS B 0209
JIS B 0207 ※ 1
JIS B 0211 ※ 1

60°

1 ～ 355

4H, 5H, 6H, 7H
4h, 6h, 6g, 8g

JIS B 0251

Miniature Screws
Miniature screw thread

S

JIS B 0201

0.3 ～ 1.4

3G5, 3G6, 4H5
4H6, 5h3

─

Unified Screw (Parallel Thread)
Unified coarse screw threads

UNC

JIS B 0206
JIS B 0210

No.1 ～ 4

3B, 2B, 1B
3A, 2A, 1A

JIS B 0255

Unified Screws (Specific)
Unified fine screw threads

UNF

JIS B 0208
JIS B 0212

No.0 ～ 11⁄2

Unified Threads
Unified thread (ANSI standard)

UNC/UNRC

ANSI/ASME B1.1

No.1 ～ 4

ANSI B1.2

UNF/UNRF

No.0 ～ 11⁄2

UNEF/UNREF

No.12 ～ 111⁄16

UNS/UNRS

No.10 ～ 6

─

4, 6, 8, 12, 16, 20,
28, 32UN/UNR

5⁄16 ～ 6

ANSI/ASME B1.2

Unified Threads
Unified thread

UNJC

SAE AS 8879D ISO 3161 ASME B1.15

0.073 ～ 4

3B, 3A
2B, 2A

NBS HAND BOOK H28

UNJF

0.060 ～ 1.5

UNJEF

0.216 ～ 1.6875

8UNJ

1.0625 ～ 4

12UNJ

0.625 ～ 6

16UNJ

0.4375 ～ 6

Wit screws (parallel)
Whitworth coarse screw thread

W

JIS B 0206※2

55°

¼ ～ 6

Grade 2, Grade 3, Grade 4
Class2, Class3, Class4

JIS B 0257※1

Wit screws (fine)
Whitworth fine screw thread

JIS B 0208※2

9.5 ～150

JIS B 0258※1

Pipe parallel screw
Parallel pipe threads

G

JIS B 0202

1⁄16 ～ 6

Male thread - Class A, Class B
External thread-Class A, Class B

JIS B 0254

PF

JIS B 0202 Annex
Appendix

1⁄8 ～12

Class A, Class B
Class A, Class B

JIS B 0254 Annex
Appendix

Thick Steel Conduit Screws
Screw threads for thick steel conduits

CTG

JIS C 8305 Annex
Appendix

16 ～ 104

─

─

Thin Steel Conduit Screws
Screw threads for thin steel conduits

CTC

80°

19 ～ 75

Parallel screws for pipes (USA)
Straight pipe thread (USA)

NPSC

ANSI/ASME B1.20.1

60°

1⁄8 ～ 4

ANSI/ASME B1.20.1

NPSM

1⁄8 ～ 6

2B, 2A

NPSL

1⁄8 ～12

─

NPSH

ANSI/ASME B1.20.7

1⁄2 ～ 4

Parallel screws for dry seal pipes (USA)
Parallel pipe threads (USA) (Dryseal)

NPSF

ANSI B1.20.3.1.20.4

1⁄16 ～ 1

ANSI B1.20.5

NPSI

Parallel screws for pipes (UK)
Pipe threads (UK)

G

BS 2779

55°

1⁄16 ～ 6

Male thread - Class A, Class B
External thread-Class A, Class B

─

Metric trapezoidal screw
Metric trapezoidal screw threads

Tr

JIS B 0216 B 0217
B 0218 ※1

30°

8 ～ 300

7H, 8H, 7e, 8c

30 degree trapezoidal screw
Trapezoidal screw thread (30°)

TM

JIS B 0216:1980 Annex
Appendix

10 ～ 300

─

29 degree trapezoidal screw
Trapezoidal screw thread (29°)

TW

JIS B 0222※1

29°

10 ～ 100

Acme screw (USA)
ACME threads (USA)

ACME

ANSI/ASME B1.5

1⁄4 ～ 5

4G, 3G, 2G
4C, 3C, 2C

ANSI B1.5

Stub Acme Screw (USA)
Stub ACME threads, short (USA)

STUB ACME

ANSI/ASME B1.8

─

ANSI B1.8

Buttress screw (USA)
Buttress screw threads (USA)

BUTT

ANSI B1.9

7°×45°

1⁄2 ～ 24

Class3, Class2

ANSI B1.9

Bicycle screws (for general use)
Bicycle threads (General purpose)

BC

JIS B 0225

60°

5⁄16 ～ 19⁄16

─

JMAS 4002

Bicycle screws (for spokes)
Bicycle threads (for spokes)

1.8 ～ 4

Sewing machine screws
Screw threads for sewing machines

SM

JIS B 0226※1

1⁄16 ～ 13⁄16

Grade 1, Grade 2, Grade 3
Class1, Class2, Class3

─

Camera Tripod Mounting Screws
Screw threads for Tripod Connections for Cameras

U

JIS B 7103

1⁄4, 3⁄8

─

Photographic Lens Accessory Mounting Screws
Screw threads for Engagement of Accessories to Lens Front

M

JIS B 7111

13.5 ～ 95

Spark plug screws for internal combustion engines
Screw threads for Spark Plugs for Internal Combustion Engines

M

JIS B 8031

10S, 12S, 14S

Types of screws
Type

symbol
Abbreviation

standard
Standard

Screw Thread Angle
Thread angle

Nominal diameter range
Size range

Grade of screw
Tolerance class

Gauge Standards
Standard for screw thread gauge

Implantable bolt
Stud Bolts

STUD

JIS B 1173

60°

4 ～ 20

─

─

Automotive Tire Valve Screws
Tire valve threads for automobiles

V

JIS D 4207 Annex
Appendix

5 ～ 20

Automotive Tire Valve Stem Screw
Tire valve threads for automobiles

TV

JIS D 4208※1

5 ～ 12

Bicycle Tire Valve Screws
Tire valve threads for bicycles

CTV

JIS D 9422 Annex
Appendix

5 ～ 8

JMAS 4002

Bulb bases, screws for receiving money
Screw threads for electric lamps

E

JIS C 7709

─

5 ～ 40

─

Water tap mounting screws
Screw threads for Faucets and Ball Taps

─

JIS B 2061

55°

13, 20, 25

Steel wire drum base screw
Plugs and flanges for steel drums

G

JIS Z 1604 Annex
Appendix

3⁄4, 2

JIS Z 1604 Annex
Appendix