Left hand threaded nuts metric are six sided general purpose fasteners with internal screw threads. Left hand threaded nuts metric is with passivation finished. For similar reasons as the bolt head – 6 sides give a good granularity of angles for a tool to approach from (good in tight spots), but more (and smaller) corners would be vulnerable to being rounded off. It takes only 1/6th of a rotation to obtain the next side of the hexagon and grip is optimal. However polygons with more than 6 sides do not give the requisite grip and polygons with fewer than 6 sides take more time to be given a complete rotation. Other specialized shapes exist for certain needs, such as wingnuts for finger adjustment and captive nuts (e.g. cage nuts) for inaccessible areas. Ever Hardware provides custom-made fasteners and customizable packaging.
- Metric size of left hand threaded nuts metric
| Hole Diameter D(mm) | Pitch P(mm) | Across Flats A/F(mm) | External Diameter;across corners, A/C(mm) | Height, H(mm) | ||||||
| 2nd | Coarse | Fine | ISO | DIN | JIS | Hex nut | Jam nut | Nylon nut | ||
| 1st | choice | |||||||||
| choice | ||||||||||
| 1 | 0.25 | 2.5 | ||||||||
| 1.2 | 0.25 | |||||||||
| 1.4 | 0.3 | |||||||||
| 1.6 | 0.35 | 3.2 | ||||||||
| 1.8 | 0.35 | |||||||||
| 2 | 0.4 | 4 | 1.6 | 1.2 | – | |||||
| 2.5 | 0.45 | 5 | 2 | 1.6 | – | |||||
| 3 | 0.5 | 5.5 | 6.4 | 2.4 | 1.8 | 4 | ||||
| 3.5 | 0.6 | 6 | ||||||||
| 4 | 0.7 | 7 | 7 | 7 | 8.1 | 3.2 | 2.2 | 5 | ||
| 5 | 0.8 | 8 | 8 | 8 | 9.2 | 4 | 2.7 | 5 | ||
| 6 | 1 | 0.75 | 10 | 10 | 10 | 11.5 | 5 | 3.2 | 6 | |
| 7 | 1 | 11 | 5.5 | 3.5 | – | |||||
| 8 | 1.25 | 1 | 13 | 13 | 12 | 15 | 6.5 | 4 | 8 | |
| 10 | 1.5 | 1.25 or 1 | 16 | 17 | 14 | 19.6 | 8 | 5 | 10 | |
| 12 | 1.75 | 1.5 or 1.25 | 18 | 19 | 17 | 22.1 | 10 | 6 | 12 | |
| 14 | 2 | 1.5 | 21 | 22 | 19 | 11 | 7 | 14 | ||
| 16 | 2 | 1.5 | 24 | 24 | 22 | 27.7 | 13 | 8 | 16 | |
| 18 | 2.5 | 2 or 1.5 | 27 | 15 | 9 | 18.5 | ||||
| 20 | 2.5 | 2 or 1.5 | 30 | 30 | 34.6 | 16 | 10 | 20 | ||
| 22 | 2.5 | 2 or 1.5 | 32 | |||||||
| 24 | 3 | 2 | 36 | 41.6 | 19 | |||||
| 27 | 3 | 2 | 41 | |||||||
| 30 | 3.5 | 2 | 46 | 53.1 | 24 | |||||
| 33 | 3.5 | 2 | ||||||||
| 36 | 4 | 3 | 55 | 63.5 | 29 | |||||
| 39 | 4 | 3 | ||||||||
| 42 | 4.5 | 3 | ||||||||
| 45 | 4.5 | 3 | ||||||||
| 48 | 5 | 3 | ||||||||
| 52 | 5 | 4 | ||||||||
| 56 | 5.5 | 4 | ||||||||
- Inch size of left hand threaded nuts metric
| UTS | Nominal hole | Pitch, P | Across flats, | Across corners, | Height, H | |||||||||||||||||||
| size | diameter, D | Coarse (UNC) | Fine (UNF) | Extra fine (UNEF) | A/F | A/C | Hex nut | Jam nut | Nylon nut | |||||||||||||||
| (in) | (mm) | (in) | (mm) | (in) | (mm) | (in) | (mm) | (in) | (mm) | (in) | (mm) | (in) | (mm) | (in) | (mm) | (in) | (mm) | |||||||
| #0 | 5⁄32 | 0.1563 | 3.969 | |||||||||||||||||||||
| #1 | 5⁄32 | 0.1563 | 3.969 | |||||||||||||||||||||
| #2 | 0.086 | 2.1844 | 3⁄16 | 0.1875 | 4.763 | 5.18 | 1.65 | |||||||||||||||||
| #3 | 3⁄16 | 0.1875 | 4.763 | 5.1 | 1.85 | |||||||||||||||||||
| #4 | 0.112 | 2.8448 | 1⁄4 | 0.25 | 6.35 | 7.05 | 2.25 | |||||||||||||||||
| #6 | 0.138 | 3.5052 | 5⁄16 | 0.3125 | 7.938 | 8.95 | 2.85 | |||||||||||||||||
| #8 | 0.164 | 4.1656 | 11⁄32 | 0.344 | 8.731 | 0.386 | 9.8 | 3.05 | ||||||||||||||||
| #10 | 0.19 | 4.826 | 3⁄8 | 0.375 | 9.525 | 0.461 | 11.7 | 3.1 | ||||||||||||||||
| #12 | 0.216 | 5.4864 | 7⁄16 | 0.4375 | 11.113 | |||||||||||||||||||
| 1⁄4 | 1⁄4 | 0.25 | 6.35 | 7⁄16 | 0.4375 | 11.113 | ||||||||||||||||||
| 5⁄16 | 5⁄16 | 0.3125 | 7.9375 | 1⁄2 | 0.5 | 12.7 | 0.577 | |||||||||||||||||
| 3⁄8 | 3⁄8 | 0.375 | 9.525 | 9⁄16 | 0.562 | 14.288 | 0.65 | |||||||||||||||||
| 7⁄16 | 7⁄16 | 11⁄16 | 0.675 | 17.463 | ||||||||||||||||||||
| 1⁄2 | 1⁄2 | 0.5 | 12.7 | 3⁄4 | 0.75 | 19.05 | 0.866 | |||||||||||||||||
| 9⁄16 | 9⁄16 | 7⁄8 | 0.875 | 22.225 | ||||||||||||||||||||
| 5⁄8 | 5⁄8 | 15⁄16 | 0.9375 | 23.813 | 1.083 | |||||||||||||||||||
| 3⁄4 | 3⁄4 | 0.75 | 1 1⁄8 | 1.125 | 28.575 | 1.299 | ||||||||||||||||||
| 7⁄8 | 7⁄8 | 1 5⁄16 | 1.3125 | 33.338 | ||||||||||||||||||||
| 1 | 1 | 1 | 25.4 | 1 1⁄2 | 1.5 | 38.1 | 1.653 | |||||||||||||||||
Ever Hardware makes the world a better place
| Category | Left Hand Threaded Nuts Metric |
|---|---|
| Finish | Electro-Plating |
| Thread type | Metric/Imperial/According to Request |
| Material | Stainless Steel/Carbon Steel/Aluminum/Brass/Copper, etc. |
| Brand | Ever Hardware |
| Place of origin | China Mainland |
| Size | Customized as required |
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What Client’s Say
Those look great! All the specs look perfect.
Perfect ! This is that I need.
Thank you very much.
The bolts are perfect and they’re fits good.
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Height is also ok.
I tested the bolts this morning and they are perfect. Thank you so much.
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