Made in Japan
Manufacturer: Eisen Co., Ltd.
Model: SPM Series
Metric thread plug gauge (steel thread gauge)
About the Series
Example of notation, Plug gauge
Example of notation, For wear inspection
Metric thread nominal and pitch list
| Thread Nominal |
Regular pitch |
Fine pitch |
|
Thread Nominal |
Regular pitch |
Fine pitch |
| M1 |
0.25 |
0.2 |
|
|
|
M27 |
3 |
*2 |
1.5 |
*1 |
|
|
| M1.1 |
*0.25 |
*0.2 |
|
|
|
M28 |
|
2 |
1.5 |
1 |
▲0.5 |
|
| M1.2 |
0.25 |
0.2 |
|
|
|
M30 |
3.5 |
*3 |
2 |
1.5 |
1 |
▲0.5 |
| M1.4 |
0.3 |
0.2 |
|
|
|
M32 |
|
|
2 |
1.5 |
▲1 |
▲0.5 |
| M1.6 |
*0.35 |
*0.2 |
|
|
|
M33 |
3.5 |
*3 |
*2 |
1.5 |
|
|
| M1.7 |
▽0.35 |
▲0.2 |
|
|
|
M34 |
|
|
▲2 |
▲1.5 |
▲1 |
▲0.5 |
| M1.8 |
*0.35 |
*0.2 |
|
|
|
M35 |
|
|
|
1.5 |
|
|
| M2 |
0.4 |
0.25 |
|
|
|
M36 |
Four |
*3 |
2 |
1.5 |
▲1 |
▲0.5 |
| M2.2 |
*0.45 |
*0.25 |
|
|
|
M38 |
|
|
▲2 |
1.5 |
▲1 |
▲0.5 |
| M2.3 |
▽0.4 |
▲0.25 |
|
|
|
M39 |
Four |
*3 |
*2 |
*1.5 |
|
|
| M2.5 |
*0.45 |
*0.35 |
|
|
|
M40 |
|
*3 |
2 |
1.5 |
▲1 |
|
| M2.6 |
▽0.45 |
▲0.35 |
|
|
|
M42 |
4.5 |
*Four |
*3 |
2 |
1.5 |
▲1 |
| M3 |
*0.5 |
|
|
|
|
M45 |
4.5 |
*Four |
*3 |
2 |
1.5 |
▲1 |
| M3 |
▲0.6 |
0.35 |
|
|
|
M48 |
Five |
*Four |
*3 |
2 |
1.5 |
▲1 |
| M3.5 |
0.6 |
0.35 |
|
|
|
M50 |
|
|
*3 |
2 |
1.5 |
▲1 |
| M4 |
*0.7 |
|
|
|
|
M52 |
*Five |
*Four |
*3 |
2 |
1.5 |
|
| M4 |
▲0.75 |
0.5 |
|
|
|
M55 |
|
*Four |
*3 |
2 |
1.5 |
|
| M4.5 |
0.75 |
0.5 |
|
|
|
M56 |
*5.5 |
*Four |
*3 |
*2 |
*1.5 |
|
| M5 |
*0.8 |
|
|
|
|
M58 |
|
*Four |
*3 |
2 |
1.5 |
|
| M5 |
▲0.9 |
0.5 |
|
|
|
M60 |
*5.5 |
*Four |
*3 |
2 |
1.5 |
|
| M5.5 |
▲0.9 |
0.5 |
|
|
|
M62 |
|
*Four |
*3 |
2 |
1.5 |
|
| M6 |
1 |
0.75 |
▲0.5 |
|
|
M64 |
*6 |
*Four |
*3 |
*2 |
*1.5 |
|
| M7 |
1 |
0.75 |
▲0.5 |
|
|
M65 |
|
*Four |
*3 |
2 |
1.5 |
|
| M8 |
1.25 |
1 |
0.75 |
▲0.5 |
|
M68 |
*6 |
*Four |
*3 |
2 |
1.5 |
|
| M9 |
1.25 |
1 |
0.75 |
▲0.5 |
|
M70 |
|
*6 |
*Four |
*3 |
2 |
1.5 |
| M10 |
1.5 |
1.25 |
1 |
*0.75 |
▲0.5 |
M72 |
|
*6 |
*Four |
*3 |
2 |
1.5 |
| M11 |
*1.5 |
▲1.25 |
1 |
*0.75 |
▲0.5 |
M75 |
|
|
*Four |
*3 |
2 |
1.5 |
| M12 |
1.75 |
1.5 |
*1.25 |
1 |
▲0.5 |
M76 |
|
*6 |
*Four |
*3 |
*2 |
*1.5 |
| M13 |
|
▲1.5 |
|
▲1 |
▲0.5 |
M78 |
|
|
|
|
2 |
▲1.5 |
| M14 |
2 |
1.5 |
*1.25 |
1 |
▲0.5 |
M80 |
|
*6 |
*Four |
*3 |
2 |
1.5 |
| M15 |
|
1.5 |
|
1 |
▲0.5 |
M82 |
|
|
|
|
2 |
▲1.5 |
| M16 |
2 |
1.5 |
|
1 |
▲0.5 |
M85 |
|
*6 |
*Four |
*3 |
2 |
▲1.5 |
| M17 |
|
*1.5 |
|
*1 |
|
M88 |
|
|
|
|
▲2 |
▲1.5 |
| M18 |
2.5 |
2 |
1.5 |
1 |
▲0.5 |
M90 |
|
*6 |
*Four |
*3 |
2 |
▲1.5 |
| M20 |
2.5 |
2 |
1.5 |
1 |
▲0.5 |
M92 |
|
|
|
|
▲2 |
▲1.5 |
| M22 |
2.5 |
2 |
1.5 |
1 |
▲0.5 |
M95 |
|
*6 |
*Four |
*3 |
2 |
▲1.5 |
| M24 |
3 |
2 |
1.5 |
1 |
▲0.5 |
M98 |
|
|
|
|
▲2 |
▲1.5 |
| M25 |
|
2 |
1.5 |
1 |
▲0.5 |
M100 |
|
*6 |
*Four |
*3 |
2 |
▲1.5 |
| M26 |
|
▲2 |
1.5 |
▲1 |
▲0.5 |
|
|
|
|
|
|
|
- Note) *: Adopted by ISO ▲: Abolished in March 1968 (old JIS) ▽: Abolished in June 1997 (old JIS)
