M1.6 Thread vs. M6 Thread
Comparing 2 standards across 8 specifications. 8 key differences identified.
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.
M6 is an ISO metric machine screw thread with a nominal major diameter of 6.0 mm and a standard coarse pitch of 1.00 mm. Requiring a 5.00 mm tap drill, it is the global standard for EIA-310 19-inch datacenter server rack cage nuts, the smallest VESA MIS-F 200×200 mm TV mounts, and automotive body panels.
Specification Comparison Table
8 Parameters| Parameter / Spec | ||
|---|---|---|
|
Nominal Major Diameter
|
1.60 mm | 6.00 mm |
|
Standard Coarse Pitch
|
0.35 mm | 1.00 mm |
|
Fine Pitch (Optional)
|
0.20 mm | 0.75 mm |
|
Tap Drill Diameter
|
1.25 mm (75% thread engagement) | 5.00 mm (75% thread engagement) |
|
Minor Diameter (Internal)
|
1.221 mm | 4.917 mm |
|
Tensile Stress Area
|
1.27 mm² | 20.1 mm² |
|
Thread Profile Angle
|
60 degrees | — |
|
Common Drive Size
|
— | 10mm Hex / 5.0mm Allen / T30 |