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All Metal Self Locking Nut Turret Type

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.

self-locking-turret-type-dim-2

Technical Data & Availability

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.

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