Lock Nuts

Lock nuts provide a secure, vibration resistant fastening solution for applications where standard nuts may loosen under movement, load or repeated use. Designed with a deformed thread profile, lock nuts create friction against the mating thread, helping prevent loosening without the need for additional locking components such as washers or adhesives. Commonly used in machinery, automotive assemblies, structural steelwork, fabrication and general engineering, lock nuts are ideal for applications subject to vibration or dynamic loads. Manufactured to DIN 439 standards, the range includes zinc plated steel options for general indoor use, brass for decorative and electrical applications, and stainless steel A2 and A4 variants for enhanced corrosion resistance in outdoor, industrial and aggressive environments.

Available across a wide range of metric sizes, lock nuts are selected for consistent locking performance, reliable thread engagement and suitability for professional trade and industrial use.

Lock Nuts
M1.6 Lock Nut Din439 A2 Pack 1000

M1.6 Lock Nut Din439 A2 Pack 1000

Stock Code: FAW00019593
Manufacturer Part No: A439016
£60.74 (exc VAT) per Pack
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M1.6 Lock Nut Din439 A4 Pack 1000

M1.6 Lock Nut Din439 A4 Pack 1000

Stock Code: FAW00019605
Manufacturer Part No: A439016A4
£1,049.60 (exc VAT) per Pack
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M10 Lock Nut Din439 A2 Pack 200

M10 Lock Nut Din439 A2 Pack 200

Stock Code: FAW00007741
Manufacturer Part No: A43910
£14.16 (exc VAT) per Pack
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M10 Lock Nut Din439 A4 Pack 200

M10 Lock Nut Din439 A4 Pack 200

Stock Code: FAW00015568
Manufacturer Part No: A43910A4
£21.24 (exc VAT) per Pack
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M10 Lock Nut Din439 Brass Pack 200

M10 Lock Nut Din439 Brass Pack 200

Stock Code: FAW00013208
Manufacturer Part No: 1473M56
£41.64 (exc VAT) per Pack
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M10 Lock Nut Din439 Zinc Plated Gr.4 Pack 500

M10 Lock Nut Din439 Zinc Plated Gr.4 Pack 500

Stock Code: FAW00003976
Manufacturer Part No: Z0323M56
£13.94 (exc VAT) per Pack
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