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

These nuts feature a high-quality nylon insert that grips the bolt threads during tightening, creating internal friction that resists loosening. Our self-locking nuts meet recognized Saudi engineering standards, ensuring reliable performance in heavy machinery and construction projects across the Kingdom, even in high-vibration environments.

No, our self-locking nuts are engineered specifically for the Kingdom’s extreme weather. Matkel uses UV- and moisture-resistant nylon inserts that maintain locking strength up to 120°C, ensuring long-term reliability for construction and infrastructure projects in Riyadh, Jeddah, and the Eastern Province.

For critical construction and electrical projects in Saudi Arabia, we recommend replacing them after removal. The nylon insert loses some elasticity during loosening, which may reduce locking security. While light, non-critical applications allow one reuse, new nuts guarantee optimal safety and performance on major sites.

Match the nut diameter precisely to your bolt size and verify approved quality markings on the packaging to guarantee vibration resistance. Matkel stocks all standard metric sizes used in Saudi Arabia. Our technical support team can also help you identify the exact specification for your industrial or construction project.

Yes, we provide competitive bulk rates tailored for large-scale construction and infrastructure projects across Saudi Arabia. All orders include fully compliant ZATCA e-invoices. With multiple delivery options nationwide, contractors can easily manage procurement. Contact our sales team through the platform to get a custom quote for your project.

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

Lock Nut Size 16-40mm Weight 0.06 Kg Makita

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 5 mm Grade 4.8 DIN 985

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 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