Side-by-Side Comparison
Metric Threads (ISO)
M1.6 Thread vs. M12 Thread
Comparing 2 standards across 10 specifications. 10 key differences identified.
Comparing:
M1.6 Thread
M12 Thread
M1.6 is a miniature ISO metric machine screw thread with a nominal major diameter of 1.6 mm and a standard coarse pitch of 0.35 mm. Requiring a 1.25 mm tap drill, it is the standard fastening thread for precision optical equipment, wristwatches, and micro-electronic assemblies.
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
10 Parameters| Parameter / Spec | ||
|---|---|---|
|
Nominal Major Diameter
|
1.60 mm | 12.00 mm |
|
Standard Coarse Pitch
|
0.35 mm | 1.75 mm |
|
Minor Diameter (Internal)
|
1.221 mm | 10.106 mm |
|
Tensile Stress Area
|
1.27 mm² | 84.3 mm² |
|
Fine Pitch (Optional)
|
0.20 mm | — |
|
Tap Drill Diameter
|
1.25 mm (75% thread engagement) | — |
|
Thread Profile Angle
|
60 degrees | — |
|
Fine Pitch (Automotive)
|
— | 1.50 / 1.25 mm |
|
Tap Drill Diameter (Coarse)
|
— | 10.20 mm (75% thread engagement) |
|
Common Drive Size
|
— | 19mm (ISO) / 18mm (DIN) / 10.0mm Allen |