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All Metal Self Locking Nut Thin

Thin Type All Metal Self Locking Nuts are a one piece locknut with high resistance to corrosion and extreme temperatures. This enables use in volatile environments with temperatures ranging from -200°C to 400°C, depending on the material and finish.

The self locking feature ensures that the bolt is not damaged and provides high resistance to vibration. These advantages are obtained by the de-pitched, self-locking slot found on the turret portion of this nut.

During installation, the slotted turret section reverts to its original form and the slot grips the shank or thread of the bolt for a secure fixing. Standard Type All Metal Self Locking Nuts are also available at Fastenright.

Manufactured as standard from 304 / A2 Stainless Steel, 316 / A4 Stainless Steel, and Steel grades 5, 8 and 10. Non-standard materials such as Brass, Bronze and Titanium are available on request.

These reusable Thin Type All Metal Self Locking Nuts are available at Fastenright in thread sizes M4 to M45. 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.

Thin locking nut diagram

Technical Data & Availability

Metric
Thread
s (mm) ht (mm) m (mm) Pitch (mm)
Coarse Fine
M4 7 4.5 2.5 0.7 0.5
M5 8 4.8 2.6 0.8 0.5
M6 10 5.2 2.7 1 0.75
M8 13 6 3.5 1.25 1
M10 17 7.5 4.5 1.5 1.25
M12 19 9 5.5 1.75 1.5
M14 22 11 7 2 1.5
M16 24 12 8 2 1.5
M18 27 14 9.5 2.5 2
M20 30 15 10.5 2.5 2
M22 34 17 12 2.5 2
M24 36 19 13 3 2
M27 41 20 14 3 2
M30 46 21.5 15 3.5 3
M33 50 23 16.5 3.5 3
M36 55 25 18 4 3
M39 60 26 19 4 3
M42 65 30 22 4.5 4
M45 70 32 24 4.5 4
Imperial
Thread
s (in) ht (in) m (in) Threads Per Inch
UNC UNF BSW BSF
No.6 0.276 0.177 0.098 32 40
No.8 0.315 0.189 0.102 32 36
1/4″ 0.394 0.205 0.106 20 28 20 26
5/16″ 0.512 0.236 0.138 18 24 18 22
3/8″ 0.669 0.295 0.177 16 24 16 20
1/2″ 0.748 0.354 0.217 13 20 12 16
9/16″ 0.866 0.433 0.276 12 18 12 16
5/8″ 0.945 0.472 0.315 11 18 11 14
11/16″ 1.063 0.551 0.374 12 11 14
3/4″ 1.181 0.591 0.413 10 16 10 12
7/8″ 1.339 0.669 0.472 9 14 9 11
1″ 1.417 0.748 0.512 8 14 8 10
1.1/8″ 1.614 0.787 0.551 7 12 7 9
1.1/4″ 1.811 0.846 0.591 7 12 7 9
1.3/8″ 1.969 0.906 0.650 6 12 6 8
1.1/2″ 2.165 0.984 0.709 6 12 6 8
1.5/8″ 2.362 1.024 0.748 6 5
1.3/4″ 2.559 1.181 0.866 5 5 7
Size not listed? Please make an enquiry – we may be able to provide it.

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