{"id":8528,"date":"2026-05-26T04:36:24","date_gmt":"2026-05-26T08:36:24","guid":{"rendered":"https:\/\/fluidhoses.com\/?post_type=dt_portfolio&p=8528"},"modified":"2026-05-26T04:51:58","modified_gmt":"2026-05-26T08:51:58","slug":"thread-identification-kit","status":"publish","type":"dt_portfolio","link":"https:\/\/fluidhoses.com\/vi\/project\/thread-identification-kit\/","title":{"rendered":"Thread Identification Kit"},"content":{"rendered":"

Thread Identification Kit (Thread Test Plug Set)<\/h2>\n\n\n\n
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\"Thread
Thread Identification Kit<\/figcaption><\/figure>\n<\/div>\n\n\n\n
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This thread identification kit is specifically designed for identifying thread specifications in hydraulic fittings, hose fittings, and mechanical connections.<\/p>\n\n\n\n

The kit contains a variety of standard thread test plugs, covering common specifications such as Metric, BSP (British Standard Pipe), and UNF\/UNC (Unified National)<\/strong> threads, enabling users to quickly and accurately determine the size and type of unknown threads. It is an essential tool for hydraulic fitting selection, maintenance, and repair.<\/p>\n\n\n\n

No calipers or complex measuring tools are required\u2014simply screw in the appropriate plug to complete the identification process.<\/p>\n<\/div>\n<\/div>\n\n\n\n

Thread Identification Kit Specifications<\/h3>\n\n\n\n
Thread Inner and Outer Diameter Reference Table<\/td><\/tr>
Metric<\/td>  Metric<\/td>American<\/td><\/tr>
<\/td>I.D<\/td>O.D<\/td><\/td>I.D<\/td>O.D<\/td><\/td>I.D<\/td>O.D<\/td><\/tr>
M10\u00d71.5<\/td>8.37 <\/td>10 <\/td>M36\u00d71.5<\/td>34.37 <\/td>36 <\/td>2\u00d711 TPI<\/td>56.656 <\/td>59.614 <\/td><\/tr>
M12\u00d71.25<\/td>10.625 <\/td>12 <\/td>M36\u00d72<\/td>33.8 <\/td>36 <\/td>3\/8\u00d718 TPI(NPT)<\/td>14.95 <\/td>16.66 <\/td><\/tr>
M12\u00d71.5<\/td>10.35 <\/td>12 <\/td>M39\u00d71.5<\/td>37.37 <\/td>39 <\/td>7\/16\u00d720 TPI<\/td>9.74 <\/td>11.1 <\/td><\/tr>
M14x1<\/td>12.91 <\/td>14 <\/td>M39\u00d72<\/td>36.8 <\/td>39 <\/td>1\/2\u00d720 TPI<\/td>11.33 <\/td>12.7 <\/td><\/tr>
M14\u00d71.5<\/td>12.35 <\/td>14 <\/td>M42\u00d72<\/td>39.8 <\/td>42 <\/td>9\/16\u00d718 TPI<\/td>12.76 <\/td>14.28 <\/td><\/tr>
M16\u00d71<\/td>14.91 <\/td>16 <\/td>M45\u00d72<\/td>42.8 <\/td>45 <\/td>5\/8\u00d718 TPI<\/td>14.35 <\/td>15.81 <\/td><\/tr>
M16\u00d71.5<\/td>14.35 <\/td>16 <\/td>M48\u00d72<\/td>45.83 <\/td>48 <\/td>11\/16\u00d716 TPI<\/td>15.80 <\/td>17.46 <\/td><\/tr>
M18\u00d71.5<\/td>16.35 <\/td>18 <\/td>M52\u00d72<\/td>49.8 <\/td>52 <\/td>34\u00d716 TPI<\/td>17.33 <\/td>19.05 <\/td><\/tr>
M20\u00d71.5<\/td>18.35 <\/td>20 <\/td>M60\u00d72<\/td>58 <\/td>60 <\/td>13\/16\u00d716 TPI<\/td>18.923 <\/td>20.599 <\/td><\/tr>
M22\u00d715<\/td>20.35 <\/td>22 <\/td>M64\u00d72<\/td>62 <\/td>64 <\/td>7\/8\u00d714threads<\/td>20.56 <\/td>22.2 <\/td><\/tr>
M22\u00d72<\/td>19.83 <\/td>22 <\/td>M64\u00d72<\/td>62 <\/td>64 <\/td>1\u00d714 TPI<\/td>23.29 <\/td>25.4 <\/td><\/tr>
M24X1.5<\/td>22.35 <\/td>24 <\/td>British<\/td>1.1\/16\u00d712threads<\/td>24.7 <\/td>26.98 <\/td><\/tr>
M424\u00d72<\/td>21.83 <\/td>24 <\/td>1\/4\u00d719threads<\/td>11.445 <\/td>13.157 <\/td>1.3\/16\u00d712threads<\/td>28.04 <\/td>30.16 <\/td><\/tr>
M26\u00d71.5<\/td>24.35 <\/td>26 <\/td>3\/8\u00d719threads<\/td>14.95 <\/td>16.662 <\/td>1.5\/16\u00d712threads<\/td>31.05 <\/td>33.33 <\/td><\/tr>
M27\u00d71.5<\/td>25.35 <\/td>27 <\/td>1\/2\u00d714threads<\/td>18.631 <\/td>20.955 <\/td>1.7\/16\u00d712threads<\/td>34.39 <\/td>36.51 <\/td><\/tr>
M27\u00d72<\/td>24.8 <\/td>27 <\/td>5\/8\u00d714threads<\/td>20.587 <\/td>22.911 <\/td>1.5\/8\u00d712threads<\/td>38.98 <\/td>41.27 <\/td><\/tr>
M30\u00d71.5<\/td>28.35<\/td>30 <\/td>3\/4\u00d714threads<\/td>24.117 <\/td>26.441 <\/td>1.11\/16\u00d712threads<\/td>40.74 <\/td>42.86 <\/td><\/tr>
M30\u00d72<\/td>27.8 <\/td>30 <\/td>1\u00d711threads<\/td>30.291 <\/td>33.249 <\/td>1.7\/8\u00d712threads<\/td>45.33 <\/td>47.22 <\/td><\/tr>
M30\u00d71.5<\/td>28.35<\/td>30 <\/td>1.1\/4\u00d711threads<\/td>38.952 <\/td>41.910 <\/td>2\u00d712threads<\/td>48.514 <\/td>50.754 <\/td><\/tr>
M30\u00d72<\/td>27.8 <\/td>30 <\/td>1.1\/2\u00d711threads<\/td>44.845 <\/td>47.803 <\/td>Note: Inner and outer diameters are in mm.<\/td><\/tr>
M33\u00d71.5<\/td>31.37 <\/td>33 <\/td>1.1\/2\u00d711threads<\/td>44.845 <\/td>47.803 <\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Product Features<\/h3>\n\n\n\n

1\ufe0f\u20e3 Comprehensive Standard Coverage
Metric Threads: M6 \u2013 M52, etc.
BSP Threads: G1\/8, G1\/4, G1\/2, etc.
American Threads: UNF \/ UNC
Meets the requirements of global hydraulic systems.<\/p>\n\n\n\n

2\ufe0f\u20e3 Clear, Legible Markings
Each plug is engraved with its specific size (e.g., M22\u00d71.5, G1\/2, UNF 7\/16-20).
Wear-resistant and fade-proof, ensuring markings remain clear even after prolonged use.<\/p>\n\n\n\n

3\ufe0f\u20e3 High-Precision Machining
Features high-precision thread machining.
Ensures accurate matching and prevents misidentification.<\/p>\n\n\n\n

4\ufe0f\u20e3 Robust and Durable
Manufactured from high-quality steel (Carbon Steel \/ Stainless Steel).
Wear-resistant and corrosion-proof, making it suitable for use in industrial environments.<\/p>\n\n\n\n

5\ufe0f\u20e3 Includes Storage Case
Comes with a high-strength plastic tool case.
Internally partitioned by size for neat, organized storage, facilitating easy portability and management.<\/p>\n\n\n\n

Thread Identification KitUsage Instructions<\/h3>\n\n\n\n

Select a test head marked with a specific size and gently screw it into the internal bore of the connector you wish to test. Continue this process until you identify the correct test head. The proper criterion for a correct match is the ability to screw it in smoothly and effortlessly for at least 2\u20133 turns without any looseness or play; this indicates that the thread size and profile are compatible. By referencing the size marking on the test head, you can then determine the dimensions of the thread.<\/p>\n\n\n\n

The following scenarios indicate a mismatch:<\/strong>
Jams immediately upon insertion \u2192 Incorrect thread profile (e.g., Metric vs. UNF)<\/p>\n\n\n\n

Feels very loose \u2192 Incorrect thread pitch<\/p>\n\n\n\n

Screws in only slightly \u2192 Mismatched diameter<\/p>\n\n\n\n

Applications<\/strong><\/h3>\n\n\n\n

This thread test kit is widely used in:<\/p>\n\n\n\n

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  • Hydraulic hose and fittings industry<\/li>\n\n\n\n
  • Machinery maintenance and repair<\/li>\n\n\n\n
  • Automotive and heavy equipment service<\/li>\n\n\n\n
  • Oil & gas and construction industries<\/li>\n\n\n\n
  • Workshop and warehouse thread identification<\/li>\n<\/ul>\n\n\n\n

    About Tom<\/h3>\n\n\n\n

    Tom is a professional manufacturer and global supplier of hydraulic hoses, fittings, and related accessories. With years of industry experience, we provide complete fluid transfer solutions for a wide range of applications, including construction machinery, mining, agriculture, automotive, and industrial systems.<\/p>\n\n\n\n

    Our product range covers:<\/p>\n\n\n\n

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    • Hydraulic hoses (SAE \/ EN standards)<\/li>\n\n\n\n
    • Hydraulic fittings (Metric, BSP, JIC, ORFS, etc.)<\/li>\n\n\n\n
    • Hose assemblies and accessories<\/li>\n\n\n\n
    • Thread identification tools and hose machine<\/li>\n<\/ul>\n\n\n\n

      With our own manufacturing facilities, Strongflex ensures strict quality control from raw materials to finished products. All products are carefully inspected to meet international standards and customer requirements.<\/p>\n\n\n\n

      We export to more than 40 countries and actively participate in international exhibitions, building long-term partnerships with customers worldwide.<\/p>\n\n\n\n

      If you have requirements for products facilitating hydraulic fluid transmission, please feel free to contact us; we can manufacture both standard and customized products to meet your specific needs.<\/p>\n\n\n\n

      Contact US<\/h2>\n\n\n\n
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      <\/p>

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