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Standard All Metal Self Locking Nuts host a full hex, one piece design with a de-pitched self-locking slot on the turret portion which grips the shank or thread of the bolt during installation.
These components are highly resistant to vibration, corrosion, and a range temperatures. They are suitable for use in corrosive environments and temperatures ranging from -200°C to 400°C, depending on the material and finish.
This self-locking nut is widely used in the engineering, construction and automotive sectors, as well as for applications that require a reliable locking mechanism. Thin Type All Metal Self Locking Nuts are also available at Fastenright.
Manufactured from 304 / A2 Stainless Steel and 316 / A4 Stainless Steel, as well as Steel grades 8, 10 & 12. Other materials are available on request including Brass, Bronze and Titanium.
Standard All Metal Self Locking Nuts are available at Fastenright in thread sizes M4 to M45 as standard. UNC / UNF / BSW / BSF threads can also be supplied.
Non-standard sizes, materials and finishes are available to order as specials, including small volume manufacture, modifications and bespoke parts made to drawings. Minimum order quantities apply.
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Technical Data & Availability |
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| Metric Thread |
s (mm) | ht (mm) | m (mm) | Pitch (mm) | ||||||||
| Coarse | Fine | |||||||||||
| M4 | 7 | 5.5 | 3.5 | 0.7 | 0.5 | |||||||
| M5 | 8 | 6.5 | 4.3 | 0.8 | 0.5 | |||||||
| M6 | 10 | 7.5 | 5 | 1 | 0.75 | |||||||
| M8 | 13 | 8.5 | 6 | 1.25 | 1 | |||||||
| M10 | 17 | 11 | 8 | 1.5 | 1.25 | |||||||
| M12 | 19 | 13 | 9.5 | 1.75 | 1.5 | |||||||
| M14 | 22 | 15 | 11 | 2 | 1.5 | |||||||
| M16 | 24 | 17 | 13 | 2 | 1.5 | |||||||
| M18 | 27 | 20 | 15.5 | 2.5 | 2 | |||||||
| M20 | 30 | 22 | 17.5 | 2.5 | 2 | |||||||
| M22 | 34 | 23 | 18 | 2.5 | 2 | |||||||
| M24 | 36 | 25 | 19 | 3 | 2 | |||||||
| M27 | 41 | 27 | 21 | 3 | 2 | |||||||
| M30 | 46 | 30 | 23.5 | 3.5 | 3 | |||||||
| M33 | 50 | 33 | 26.5 | 3.5 | 3 | |||||||
| M36 | 55 | 36 | 29 | 4 | 3 | |||||||
| M39 | 60 | 38 | 31 | 4 | 3 | |||||||
| M42 | 65 | 42 | 34 | 4.5 | 4 | |||||||
| M45 | 70 | 45 | 37 | 4.5 | 4 | |||||||
| Imperial Thread |
s (in) | ht (in) | m (in) | Threads Per Inch | ||||||||
| UNC | UNF | BSW | BSF | |||||||||
| No.6 | 0.276 | 0.217 | 0.138 | 32 | 40 | – | – | |||||
| No.8 | 0.315 | 0.256 | 0.169 | 32 | 36 | – | – | |||||
| 1/4″ | 0.394 | 0.295 | 0.197 | 20 | 28 | 20 | 26 | |||||
| 5/16″ | 0.512 | 0.335 | 0.236 | 18 | 24 | 18 | 22 | |||||
| 3/8″ | 0.669 | 0.433 | 0.315 | 16 | 24 | 16 | 20 | |||||
| 1/2″ | 0.748 | 0.512 | 0.374 | 13 | 20 | 12 | 16 | |||||
| 9/16″ | 0.866 | 0.591 | 0.433 | 12 | 18 | 12 | 16 | |||||
| 5/8″ | 0.945 | 0.669 | 0.512 | 11 | 18 | 11 | 14 | |||||
| 11/16″ | 1.063 | 0.787 | 0.610 | 12 | – | 11 | 14 | |||||
| 3/4″ | 1.181 | 0.866 | 0.689 | 10 | 16 | 10 | 12 | |||||
| 7/8″ | 1.339 | 0.906 | 0.709 | 9 | 14 | 9 | 11 | |||||
| 1″ | 1.417 | 0.984 | 0.748 | 8 | 14 | 8 | 10 | |||||
| 1.1/8″ | 1.614 | 1.063 | 0.827 | 7 | 12 | 7 | 9 | |||||
| 1.1/4″ | 1.811 | 1.181 | 0.925 | 7 | 12 | 7 | 9 | |||||
| 1.3/8″ | 1.969 | 1.299 | 1.043 | 6 | 12 | 6 | 8 | |||||
| 1.1/2″ | 2.165 | 1.417 | 1.142 | 6 | 12 | 6 | 8 | |||||
| 1.5/8″ | 2.362 | 1.496 | 1.220 | 6 | – | 5 | – | |||||
| 1.3/4″ | 2.559 | 1.654 | 1.339 | 5 | – | 5 | 7 | |||||
| Size not listed? Please make an enquiry – we may be able to provide it. | ||||||||||||
