Side-by-Side Comparison
Metric Threads (ISO)
M10 Thread vs. M12 Thread
Comparing 2 standards across 8 specifications. 8 key differences identified.
Comparing:
M10 Thread
M12 Thread
M10 is an ISO metric machine screw thread with a nominal major diameter of 10.0 mm and a standard coarse pitch of 1.50 mm. Requiring an 8.50 mm tap drill, it is standard in automotive engine mounts, suspension control arms, motorcycle rear-view mirrors, and commercial HVAC hanging brackets.
M12 is an ISO metric machine screw thread with a nominal major diameter of 12.0 mm and a standard coarse pitch of 1.75 mm. Requiring a 10.20 mm tap drill, it provides high tensile clamping strength for automotive wheel hubs, structural steel connections, and industrial machine tool mounts.
Specification Comparison Table
8 Parameters| Parameter / Spec | ||
|---|---|---|
|
Nominal Major Diameter
|
10.00 mm | 12.00 mm |
|
Standard Coarse Pitch
|
1.50 mm | 1.75 mm |
|
Tap Drill Diameter (Coarse)
|
8.50 mm (75% thread engagement) | 10.20 mm (75% thread engagement) |
|
Minor Diameter (Internal)
|
8.376 mm | 10.106 mm |
|
Tensile Stress Area
|
58.0 mm² | 84.3 mm² |
|
Common Drive Size
|
17mm (ISO) / 16mm (DIN) / 15mm / 8.0mm Allen | 19mm (ISO) / 18mm (DIN) / 10.0mm Allen |
|
Fine Pitch (Automotive Standard)
|
1.25 / 1.00 mm | — |
|
Fine Pitch (Automotive)
|
— | 1.50 / 1.25 mm |