Self-Locking Nuts

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Stainless Steel A2 Nylon Insert Lock Nut Size 5 mm Grade 4.8 DIN 985

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Zinc Plated Nylon Insert Lock Nut Coarse Thread Size 10 mm Grade 4.8 DIN 985

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Stainless Steel 304 Nylon Insert Lock Nut Size 30 mm Grade 4.8 DIN 985

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Zinc Plated Nylon Insert Lock Nut Coarse Thread Size 36 mm Grade 4.8 DIN 985

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Stainless Steel 304 Nylon Insert Lock Nut Size 24×1.5 mm Grade 4.8 DIN 985

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Stainless Steel A2 Nylon Insert Lock Nut 14 mm Grade 4.8 DIN 985

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Stainless Steel A2 Nylon Insert Lock Nut Size 20 mm Grade 4.8 DIN 985

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Zinc Plated Nylon Insert Lock Nut Coarse Thread Size 5 mm Grade 4.8 DIN 985

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Stainless Steel A2 Nylon Insert Lock Nut 2.5 mm Grade 4.8 DIN 985

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Zinc Plated Nylon Insert Lock Nuts Coarse Thread Size 30 mm Grade 4.8 DIN 985

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Zinc Plated Nylon Insert Lock Nut Coarse Thread Size 20 mm Grade 4.8 DIN 985

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Zinc Plated Nylon Insert Lock Nut Fine Thread Size 20 mm Grade 4.8 DIN 985

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Stainless Steel 304 Nylon Insert Lock Nut Size 20×1.5 mm Grade 4.8 DIN 985

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Zinc Plated Nylon Insert Lock Nut Coarse Thread Size 22 mm Grade 4.8 DIN 985

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Zinc Plated Nylon Insert Lock Nut Fine Thread 14 mm Grade 4.8 DIN 985

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Zinc Plated Nylon Insert Lock Nut Coarse Thread Size 14 mm Grade 4.8 DIN 985

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Zinc Plated Nylon Insert Lock Nut M24 Coarse Thread Grade 4.8 DIN 985

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Zinc Plated Nylon Insert Lock Nut Fine Thread Size 16 mm Grade 4.8 DIN 985

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Steel Conduit Locknut Size 2-1/2 inch

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Stainless Steel 304 Nylon Insert Lock Nut Size 12 mm Grade 4.8 DIN 985

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❓ Frequently Asked Questions

Self-locking nuts use a nylon insert, metal ring, or deformed face to resist loosening under vibration, while standard nuts can back out over time. They are commonly used in engines, machinery, and structural fixings. Matkel offers reliable options for Saudi construction and maintenance projects.

No, not if the nut matches the bolt size, torque specification, and application requirements. They are designed to resist repeated vibration in vehicles, equipment, and industrial systems. Inspect the bolt threads and nut surface before installation, because a damaged locking feature can reduce safety.

Usually no, especially if the locking insert or deformed surface is compressed, stretched, or damaged. Reuse may reduce resistance to back-off and create a safety risk. For critical assemblies, always replace it with a new nut of the same size and grade to maintain reliable clamping.

Common sizes range from 1/4 inch to 3/4 inch, with materials including carbon steel and stainless steel. In coastal areas such as Jeddah and Dammam, stainless steel or corrosion-resistant coatings are preferred to handle humidity and heat. Always match the nut specification to the bolt and project standard.

Confirm the bolt size, thread type, locking style, material, and required torque before ordering. Also check availability across sizes, minimum order requirements, and compliance with technical specifications. Matkel provides multiple options to support large and small projects with consistent quality and fit.

Self-Locking Nuts

Stainless Steel A2 Nylon Insert Lock Nut Size 5 mm Grade 4.8 DIN 985

Zinc Plated Nylon Insert Lock Nut Coarse Thread Size 10 mm Grade 4.8 DIN 985

Stainless Steel 304 Nylon Insert Lock Nut Size 30 mm Grade 4.8 DIN 985

Zinc Plated Nylon Insert Lock Nut Coarse Thread Size 36 mm Grade 4.8 DIN 985

Stainless Steel 304 Nylon Insert Lock Nut Size 24×1.5 mm Grade 4.8 DIN 985

Stainless Steel A2 Nylon Insert Lock Nut 14 mm Grade 4.8 DIN 985

Stainless Steel A2 Nylon Insert Lock Nut Size 20 mm Grade 4.8 DIN 985

Zinc Plated Nylon Insert Lock Nut Coarse Thread Size 5 mm Grade 4.8 DIN 985

Stainless Steel A2 Nylon Insert Lock Nut 2.5 mm Grade 4.8 DIN 985

Zinc Plated Nylon Insert Lock Nuts Coarse Thread Size 30 mm Grade 4.8 DIN 985

Zinc Plated Nylon Insert Lock Nut Coarse Thread Size 20 mm Grade 4.8 DIN 985

Zinc Plated Nylon Insert Lock Nut Fine Thread Size 20 mm Grade 4.8 DIN 985

Stainless Steel 304 Nylon Insert Lock Nut Size 20×1.5 mm Grade 4.8 DIN 985

Zinc Plated Nylon Insert Lock Nut Coarse Thread Size 22 mm Grade 4.8 DIN 985

Zinc Plated Nylon Insert Lock Nut Fine Thread 14 mm Grade 4.8 DIN 985

Zinc Plated Nylon Insert Lock Nut Coarse Thread Size 14 mm Grade 4.8 DIN 985

Zinc Plated Nylon Insert Lock Nut M24 Coarse Thread Grade 4.8 DIN 985

Zinc Plated Nylon Insert Lock Nut Fine Thread Size 16 mm Grade 4.8 DIN 985

Steel Conduit Locknut Size 2-1/2 inch

Stainless Steel 304 Nylon Insert Lock Nut Size 12 mm Grade 4.8 DIN 985

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Metal Lock Nut 6 inch Size | Bahra Cables by Bahra Cables

Metal Lock Nut Size 1/2 inch, Corrosion Resistant | Bahra Cables

Zinc Plated Nylon Insert Lock Nut Coarse Thread Size 8 mm Grade 4.8 DIN 985

Stainless Steel 304 Nylon Insert Lock Nut Size 8×1 mm Grade 4.8 DIN 985

Zinc Plated Nylon Insert Lock Nut Fine Thread Size 16 mm Grade 4.8 DIN 985

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Zinc Plated Nylon Insert Lock Nut Fine Thread 22 mm Grade 4.8 DIN 985

Stainless Steel A2 Nylon Insert Lock Nut Size 12×1.5 mm Grade 4.8 DIN 985

Zinc Plated Nylon Insert Lock Nut Fine Thread 8 mm Grade 4.8 DIN 985

Zinc Plated Nylon Insert Lock Nut Coarse Thread Size 16 mm Grade 4.8 DIN 985

Stainless Steel 304 Nylon Insert Lock Nut Size 8×1 mm Grade 4.8 DIN 985

❓ Frequently Asked Questions