Turret Type All Metal Self Locking Nuts are a one piece locknut with a turret section positioned above the hexagonal body. This section hosts two de-pitched slots which form the effective self locking mechanism.
They are suitable for use in a range of demanding environments and conditions. Depending on the material and finish, they can operate within a corrosive atmosphere and temperatures ranging from -200°C to 400°C.
Once installed, the slotted turret section reverts to its original form and each slot grips the shank or thread of the bolt on opposite sides. This ensures a secure fixing with high resistance to movement and vibration.
These components are often found in engineering, construction and automotive applications, as well as those that require a reusable self locking solution. All Metal Self Locking Flange Nuts are also available at Fastenright.
Turret Type All Metal Self Locking Nuts are manufactured from 304 / A2 Stainless Steel, 316 / A4 Stainless Steel, and Steel grades 8 & 10. Non-standard materials are also available on request including Brass, Bronze, and Titanium.
Available at Fastenright in thread sizes M2 to M48. UNC / UNF / BSW / BSF imperial 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.
Technical Data & Availability |
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Metric Thread |
s (mm) | ht (mm) | m (mm) | Pitch (mm) | ||||||||
Coarse | Fine | |||||||||||
M2 | 4 | 4.5 | 2.3 | 0.4 | 0.25 | |||||||
M2.5 | 5 | 4.5 | 2.3 | 0.45 | 0.35 | |||||||
M3 | 5.5 | 4.5 | 2.5 | 0.5 | 0.35 | |||||||
M4 | 7 | 5.3 | 2.6 | 0.7 | 0.5 | |||||||
M5 | 8 | 6.3 | 3 | 0.8 | 0.5 | |||||||
M6 | 10 | 7 | 3.6 | 1 | 0.75 | |||||||
M7 | 11 | 8.1 | 4.8 | 1 | 0.75 | |||||||
M8 | 13 | 8.8 | 4.8 | 1.25 | 1 | |||||||
M10 | 16 | 11 | 6 | 1.5 | 1.25 | |||||||
M12 | 18 | 13 | 7.2 | 1.75 | 1.5 | |||||||
M14 | 21 | 15 | 8.4 | 2 | 1.5 | |||||||
M16 | 24 | 18.7 | 11.5 | 2 | 1.5 | |||||||
M18 | 27 | 20 | 11.5 | 2.5 | 2 | |||||||
M20 | 30 | 21 | 12 | 2.5 | 2 | |||||||
M22 | 34 | 21.5 | 12.5 | 2.5 | 2 | |||||||
M24 | 36 | 25.5 | 15.4 | 3 | 2 | |||||||
M27 | 41 | 28 | 17 | 3 | 2 | |||||||
M30 | 46 | 31.5 | 18.5 | 3.5 | 3 | |||||||
M33 | 50 | 32 | 18.7 | 3.5 | 3 | |||||||
M36 | 55 | 34.5 | 19.5 | 4 | 3 | |||||||
M39 | 60 | 37 | 20.5 | 4 | 3 | |||||||
M42 | 65 | 39.5 | 23 | 4.5 | 4 | |||||||
M45 | 70 | 43 | 24 | 4.5 | 4 | |||||||
M48 | 75 | 46 | 25 | 5 | 4 | |||||||
Imperial Thread |
s (mm) | ht (mm) | m (mm) | Threads Per Inch | ||||||||
UNC | UNF | BSW | BSF | |||||||||
No.1 | 0.243 | 0.209 | 0.102 | 64 | 72 | – | – | |||||
No.2 | 0.243 | 0.209 | 0.102 | 56 | 64 | – | – | |||||
No.3 | 0.243 | 0.209 | 0.102 | 48 | 56 | – | – | |||||
No.4 | 0.243 | 0.209 | 0.102 | 40 | 48 | – | – | |||||
No.5 | 0.243 | 0.209 | 0.102 | 40 | 44 | – | – | |||||
No.6 | 0.305 | 0.248 | 0.118 | 32 | 40 | – | – | |||||
No.8 | 0.315 | 0.336 | 0.209 | 0.248 | 0.102 | 0.118 | 32 | 36 | – | – | ||
No.10 | 0.354 | 0.367 | 0.248 | 0.118 | 24 | 32 | – | – | ||||
No.12 | 0.428 | 0.295 | 0.177 | 24 | 28 | – | – | |||||
1/4″ | 0.433 | 0.428 | 0.295 | 0.157 | 0.177 | 20 | 28 | 20 | 26 | |||
5/16″ | 0.512 | 0.489 | 0.346 | 0.189 | 18 | 24 | 18 | 22 | ||||
3/8″ | 0.551 | 0.551 | 0.346 | 0.189 | 16 | 24 | 16 | 20 | ||||
7/16″ | 0.669 | 0.675 | 0.433 | 0.236 | 14 | 20 | 14 | 18 | ||||
1/2″ | 0.709 | 0.736 | 0.512 | 0.283 | 13 | 20 | 12 | 16 | ||||
9/16″ | 0.866 | 0.861 | 0.591 | 0.315 | 12 | 18 | 12 | 16 | ||||
5/8″ | 0.945 | 0.922 | 0.669 | 0.374 | 11 | 18 | 11 | 14 | ||||
3/4″ | 1.102 | 1.088 | 0.827 | 0.472 | 10 | 16 | 10 | 12 | ||||
7/8″ | 1.299 | 1.269 | 0.866 | 0.492 | 9 | 14 | 9 | 11 | ||||
1″ | 1.614 | 1.450 | 0.945 | 0.531 | 8 | 14 | 8 | 10 | ||||
1.1/8″ | 1.631 | 0.984 | 0.551 | 7 | 12 | 7 | 9 | |||||
1.1/4″ | 1.811 | 1.812 | 1.161 | 0.630 | 7 | 12 | 7 | 9 | ||||
1.3/8″ | 1.994 | 1.260 | 0.669 | 6 | 12 | 6 | 8 | |||||
1.1/2″ | 2.165 | 2.175 | 1.260 | 1.378 | 0.689 | 0.728 | 6 | 12 | 6 | 8 | ||
1.3/4″ | – | – | – | 5 | – | 5 | 7 | |||||
2″ | 2.953 | 1.811 | 1.004 | 5 | – | 4.5 | 7 | |||||
Size not listed? Please make an enquiry – we may be able to provide it. |