
30. List of Thread Standards and Nominal Diameter Ranges of Yamawa Taps 30. List of Thread Standards and Nominal Diameter Ranges of Yamawa Taps Cross chart of thread cutting tool standard Hardness conversion table
| Thread type | Thread type | Thread angle | Standard | Nominal | Taper | Nominal diam | eter range of Y | amawa taps |
| symbol | diameter range | JIS | ANSI | DIN | ||||
| Trithrd | R,Rc | 55° | JIS B 0203 | 1/16〜6 | 1/16 | 1/16〜2 | - | - |
| apeppe ea | PT | JIS B 0203 Appendix | 1/8 〜12 | 1/16 〜4 | - | - | ||
| Thread for shutter cable release tip and socket for camera | - | 60° | JIS B 7104 | 3.4 | 28° | 3.4 | - | - |
| Thread for seamless steel gas cylinder | - | 55° | JIS B 8241 Appendix | V1,V2,V3 | - | - | - | |
| Thread for valve for dissolved acetylene cylinder i | - | 55° | JIS B 8244 Appendix | 39 | 3/26 | - | - | - |
| Thread for valve for liquefied petroleumgas cylinder | - | 55° | JIS B 8245 Appendix | V1,V2 | - | - | - | |
| Thread for valve for high pressuregas cylinder i | - | 55° | JIS B 8246 Appendix | V1,V2,V3 | - | - | - | |
| ad Thread for artificial graphite electrode | - | 60° | JIS R 7201 | 45〜406 | 1/3 | - | - | - |
| hre American taper pipe thread | ||||||||
| per t For general use | NPT | 60° | ANSI/ASME | 1/16〜24O.D. | 1/16 | 1/16〜3 | 1/16〜2 | - |
| Ta For railing joint | NPTR | B1.20.1 | 1/2〜4 | - | - | - | ||
| American dryseal taper pipe thread | ||||||||
| For dryseal connection SAE SHORT | NPTF PTF-SAE SHORT | 60° | ANSI B1.20.3 | 1/16〜3 | 1/16 | 1/16〜2 | 1/16〜2 | - |
| American taper pipe thread for aircraft | ANPT | 60° | SAE AS 71051B | 1/16〜3 | 1/16 | - | - | - |
| API thread for steel pipe for oil well(USA) | LP | 60° | API Std 5B | 1/8 〜20O.D. | 1/16 | - | - | - |
| Thread for mining drill tube (Germany) | Gg | 60° | DIN 20314 | 31/4〜65/8 | 1/4 | - | - | - |
| Thread for gas container valve(UK) | - | 55° | BS 341:Part1,2 | 0.6 〜1.25 | 0.6 :1/5.625 0.715〜1.25 :1/8 | - - | - - | - - |
C Scale C Scale
Thread limit (Metric) Hardness Hardness Strength
| Standard ball Tungsten | A scale | B scale | D scale | 15-N scale | 30-N scale | 45-N scale | MPa※1 | ||||||
| HRC | HV | HBS | HBW | HRA | HRB | HRD | HR15N | HR30N | HR45N | HS | − | HRC |
Hand taps (Metric fine)
Hand taps (American parallel pipe thread)
Hand taps (American dryseal taper pipe thread)
Nut taps (Unified fine) Machine taps (Metric coarse) Machine taps (Metric fine) Bent shank taps (Metric fine)
Spiral fluted taps Shell taps (Metric thread) Pulley taps Thread Forming taps
Thread cutting round dies (Metric coarse, Adjustable) Thread cutting round dies (Metric fine, Adjustable) Thread cutting round dies (Metric, Solid) Thread cutting round dies (Unified coarse adjustable) Thread cutting round dies (Unified fine adjustable) Thread cutting round dies (Unified thread) Thread cutting round dies (Parallel pipe thread) Thread cutting round dies (Taper pipe thread) Hexagon dies
Technical Inf ※1 : 1Mpa=1N/mm2 ※2 : In above table, numbers in parenthesis are only for reference. This table is abstracted from SAE J 417.