|
Diameter/Decimal/Metric Chart for Small Diameters
|
|
Gauge
or Diameter |
Decimal (in) |
mm |
|
|
No. 0000 |
0.021 |
.53 |
|
No. 000 |
0.034 |
.86 |
|
No. 00 |
0.047 |
1.19 |
|
No. 0 |
0.060 |
1.524 |
|
No. 1 |
0.073 |
1.854 |
|
No. 2 |
0.086 |
2.184 |
|
No. 3 |
0.099 |
2.515 |
|
No. 4 |
0.112 |
2.845 |
|
No. 5 |
0.125 |
3.175 |
|
No. 6 |
0.138 |
3.505 |
|
No. 8 |
0.164 |
4.166 |
|
No. 10 |
0.190 |
4.826 |
|
No. 12 |
0.216 |
5.484 |
|
Fastener Conversion Chart |
|
Inch Equivalent |
Metric Size-Pitch
ISO and IFI Rec. |
|
UNC |
UNF |
|
1 - 64 |
1 - 72 |
M2 x 0.4 |
|
3 - 48 |
3 - 56 |
M2.5 x 0.45 |
|
4 - 40 |
4 - 48 |
M3 x .05 |
|
6 - 32 |
6 - 40 |
M3.5 x .06 |
|
8 - 32 |
8 - 36 |
M4 x .07 |
|
10 - 24 |
10 - 32 |
M5 x .08 |
|
1/4 - 20 |
1/4 - 28 |
M6 x 1 |
|
5/16 -18 |
5/16 - 24 |
M8 x 1.25 |
|
3/8 -16 |
3/8 - 24 |
M10 x 1.5 |
|
7/16 -14 |
7/16 - 20 |
M12 x 1.75 |
|
1/2 - 13 |
1/2 - 20 |
M14 x 2 |
|
5/8 - 11 |
5/8 - 18 |
M18 x 2 |
|
3/4 - 10 |
3/4 - 16 |
M20 x 2.5 |
|
1 - 8 |
1-12 |
M24 x 3 |
|
1-1/4 - 7 |
1-1/8 - 12 |
M30 x 3.5 |
|
1-1/2 - 6 |
1-1/4 - 12 |
M36 x 4 |
|
Approximate Equivalency Chart Metric/US
Roughly Equivalent US Bolt Materials |
|
Metric
Nut Class |
SAE J429
Normally Used |
Grades |
ASTM Grades |
|
4.6 |
4 or 5 |
1 |
A306, Grade A |
|
4.8 |
4 or 5 |
2 |
. |
|
5.8 |
5 |
2 |
. |
|
8.8 |
8 |
5 |
A325, A449 |
|
9.8 |
9 |
5+ |
A193, B7 and B16 |
|
10.9 |
10 or 12 |
8 |
A490, A354, Grade 8D |
|
12.9 |
10 or 12 |
. |
A540; B21 through B24 |
|
Common DIN Numbers for Metric Fasteners |
| DIN |
Hex Capscrews |
| 931 |
Coarse thread pitch partially threaded (specify grade) |
| 933 |
Coarse thread pitch fully threaded (specify grade) |
| 930 |
Fine thread pitch partially threaded (specify grade) |
| 961 |
Fine thread pitch fully threaded (specify grade) |
| DIN |
Nuts |
| 934 |
Hex nuts (specify pitch and class) |
| 985 |
Nylon insert locknuts (specify pitch and class) |
| 980V |
All metal locknuts (specify pitch and class) |
| DIN |
Washers |
| 125 |
Flatwashers |
| 127 |
Lockwashers |
| DIN |
Socket Produuts |
| 912 |
Socket head capscrews (normally GR 12.9 and coarse thread) |
| 7991 |
Flat head socket capscrews (normally GR 12.9 and coarse thread) |
| 916 |
Socket setscrews (normally GR 12.9 and coarse thread) |
| DIN |
Machine Screws |
| 7985 |
Pan head Phillips drive zinc plated |
| 965 |
Flat head Phillips drive zinc plated |
| DIN |
Threaded Rod |
| 975 |
All threaded rod (normally 1 meter lengths, specify grade and pitch) |
