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DURELO TOOLS & EQUIPMENTS PVT. LTD.
SAE : SAE is the abbreviation of society of Automotive Engineers (USA) 1/2 means 1/2” distance across flats of bolts, screw heads & nuts.
MM : In case of mm, the distance across flats is indicated in millimeters, 12 mm means 12 millimeters distance across flats of bolts, screw heads & nuts.
WW : ww is the abbreviation for whitworth (U.K.) and it indicates diameter of the bolts or screw, 1/8ww means diameter of the bolts as 1/8” & does not indicate distance across flats
| SAE | MM | WW | MM |
|---|---|---|---|
| 1/4 | 6.35 | 1/16 | 6.50 |
| 5/6 | 7.94 | 3/32 | 7.54 |
| 11/32 | 8.73 | 1/8 | 8.64 |
| 3/8 | 9.52 | 3/16 | 11.30 |
| 13/32 | 10.32 | 1/4 | 13.33 |
| 7/16 | 11.11 | 5/16 | 15.24 |
| 1/2 | 12.7 | 3/8 | 18.03 |
| 9/16 | 14.29 | 7/16 | 20.83 |
| 19/32 | 15.08 | 1/2 | 23.37 |
| 5/8 | 15.88 | 9/16 | 25.65 |
| 11/16 | 17.46 | 5/8 | 27.94 |
| 3/4 | 19.05 | 11/16 | 30.48 |
| 25/32 | 19.84 | 3/4 | 33.00 |
| 13/16 | 20.64 | 13/16 | 35.30 |
| 7/8 | 22.22 | 7/8 | 37.59 |
| 15/16 | 23.81 | 15/16 | 40.13 |
| 1 | 25.40 | 1 | 42.42 |
| 1.1/16 | 26.99 | 1.1/8 | 47.24 |
| 1.1/8 | 28.57 | 1.1/4 | 52.07 |
| 1.3/16 | 30.16 | 1.3/8 | 56.39 |
| 1.14 | 31.75 | 1.1/2 | 61.21 |
| 1.5/16 | 33.34 | 1.5/8 | 65.53 |
| 1.3/8 | 34.92 | 1.3/4 | 70.10 |
| 1.7/16 | 36.51 | ||
| 1.1/2 | 38.10 | ||
| 1.9/16 | 39.69 | ||
| 1.5/8 | 41.28 | ||
| 1.11/16 | 42.86 | ||
| 1.3/4 | 44.45 | ||
| 1.13/16 | 46.04 | ||
| 1.7/8 | 47.72 | ||
| 2 | 50.80 |
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