Eisen, Japan
Eisen SPS Series Limit Screw Gauge
Made in Japan
Manufacturer: Eisen Co., Ltd.
Model: SPS Series
Screw Position Gauge Pos-T
A fusion of a thread gauge and a pin gauge!
A plug gauge with a threaded portion on the go-in side!
The position of the screw hole can be measured with high precision!
Shape
Features
- The threaded portion conforms to the GO side thread plug gauge standard, allowing the threaded hole to be checked for GO at the same time.
- The squareness can be checked by looking at the gap at the end face of the pin gauge.
- The gauge material is gauge steel (SKS3, HRC58 or higher), which has excellent wear resistance.
- A removable knurled handle is included to prevent touching the gauge with bare hands (please remove it if it interferes with measurement).
- To ensure customer trust and peace of mind, inspection reports for the thread gauge and pin gauge sections are included.
Usage example
- Measuring the screw hole position with a 3D measuring machine
Precision
- Tightening creates a centripetal force on the screw, which keeps the screw position gauge in the center of the screw hole. Repeat error is 10μ or less (based on our tests).
- Since it is supported by the end surface, there is almost no tilting of the pin gauge section.
Series Details
Example of notation
Reference diagram
Metric thread on the through side
| Thread Nominal | pitch | L | D | a | b | Y | L1 | Gauge Type | Grade | ||
|---|---|---|---|---|---|---|---|---|---|---|---|
| M3 | 0.5 | Regular | 10 or 22 | 7 | ± 0.001 | Five | 2 | 6 | Ten | GP | Ⅱ(JIS grade) 6H (ISO grade) |
| M4 | 0.7 | Regular | 6 | ||||||||
| M5 | 0.8 | Regular | 8 | 7 | |||||||
| M6 | 1.0 | Regular | 9 | 8 | 2.5 | ||||||
| M7 | 1.0 | Regular | Ten | ||||||||
| M8 | 1.25 | Regular | 11 | ± 0.0015 | Ten | 3 | Ten | ||||
| M8 | 1.0 | Details | |||||||||
| M9 | 1.25 | Regular | 12 | ||||||||
| M10 | 1.5 | Regular | 13 | 12 | |||||||
| M10 | 1.25 | Details | |||||||||
| M10 | 1.0 | Details | |||||||||
| M12 | 1.75 | Regular | 15 | 14 | |||||||
| M12 | 1.5 | Details | |||||||||
| M12 | 1.25 | Details | |||||||||
| M14 | 2.0 | Regular | 17 | 14 | 14 | ||||||
| M14 | 1.5 | Details | |||||||||
| M14 | 1.25 | Details | |||||||||
| M16 | 2.0 | Regular | 19 | ||||||||
| M16 | 1.5 | Details | |||||||||
| M18 | 2.5 | Regular | twenty one | ± 0.002 | 16 | Four | |||||
| M18 | 2.0 | Details | |||||||||
| M18 | 1.5 | Details | |||||||||
| M20 | 2.5 | Regular | twenty three | ||||||||
| M20 | 2.0 | Details | |||||||||
| M20 | 1.5 | Details | |||||||||
*We can also manufacture special dimensions (fine, extra fine, unified, pre-plated settings, etc.).
Thread side unified thread
| Regular | Details | L | D | a | b | Y | L1 | Gauge Type | Grade |
|---|---|---|---|---|---|---|---|---|---|
| No.4-40UNC | No.4-48UNF | 10 or 22 | 7 | Five | 2 | 6 | Ten | GP | 2B (JIS grade) |
| No.5-40UNC | No.5-44UNF | 6 | |||||||
| No.6-32UNC | No.6-40UNF | ||||||||
| No.8-32UNC | No.8-36UNF | ||||||||
| No.10-24UNC | No.10-32UNF | 8 | 7 | ||||||
| No.12-24UNC | No.12-28UNF | ||||||||
| 1/4-20UNC | 1/4-28UNF | 9 | 8 | 2.5 | |||||
| 5/16-18UNC | 5/16-24UNF | 11 | Ten | 3 | Ten | ||||
| 3/8-16UNC | 3/8-24UNF | 13 | 12 | ||||||
| 7/16-14UNC | 7/16-20UNF | 14 | 14 | ||||||
| 1/2-13UNC | 1/2-20UNF | 16 | 14 | 14 | |||||
| 9/16-12UNC | 9/16-18UNF | 17 | |||||||
| 5/8-11UNC | 5/8-18UNF | 19 | |||||||
| 3/4-10UNC | 3/4-16UNF | twenty two | 16 | Four | |||||
| 7/8-9UNC | 7/8-14UNF | twenty five | 20 | Five | |||||
| 1-8UNC | 1-12UNF | 28 |
*We can also manufacture special dimensions (fine, extra fine, unified, pre-plated settings, etc.).
Special Shaped Products
Measurement of workpieces with large steps
*By using this in combination with a longer pin, the screw hole position can be measured even on workpieces with steps.
Simultaneous measurement of effective diameter of deep screw holes
*By lengthening the thread gauge section, the effective diameter of deep screw holes can be measured over the entire thread.
Simultaneous measurement of screw hole coaxiality
*By providing a pin gauge section at the tip for measuring pilot holes, the concentricity of screw holes can be measured.
