Space limitations often influence the type of fastener used in an assembly. DIN 985 Nylon Insert Lock Nuts are designed for applications where a compact locking nut is required without compromising fastening security. Their reduced height, combined with an integrated nylon insert, provides a practical solution for assemblies that require reliable thread locking while maintaining a low-profile design.
The nylon insert grips the bolt threads during installation, helping resist loosening caused by vibration and repeated movement. This makes DIN 985 Lock Nuts suitable for electrical equipment, automotive components, light machinery, control panels, fabricated assemblies, and other industrial applications where secure fastening and space efficiency are equally important. They are also available in premium stainless steel fasteners for environments where corrosion resistance and long service life are required.
Vimal Industrial Corporation supplies DIN 985 lock nuts in a comprehensive range of sizes, materials, and specifications to meet diverse industrial requirements. As a DIN 985 Lock Nuts Supplier in Mumbai, we work with manufacturers, fabricators, OEMs, and engineering companies looking for quality fastening solutions that align with recognised industry standards. Our range also includes stainless steel fasteners for applications requiring enhanced corrosion resistance and long-term durability.
A secure threaded joint becomes even more important when an assembly is exposed to regular movement or vibration. DIN 985 Hex Lock Nuts feature an integrated nylon insert that grips the bolt threads during tightening, helping the nut stay firmly in place without the need for additional locking accessories. Their compact profile also makes them a practical choice for assemblies where installation space is limited while maintaining dependable fastening performance.
From automotive components and industrial machinery to electrical equipment and fabricated structures, these lock nuts are specified for applications that demand reliable locking with easy installation. Available in different thread sizes and material grades, including stainless steel fasteners, they offer a practical solution for applications where durability, corrosion resistance, and consistent fastening are equally important.
Vimal Industrial Corporation is an established APL Fasteners Supplier offering a comprehensive range of DIN 985 Hex Lock Nuts for diverse industrial applications. As a recognised Nuts Supplier in Mumbai, we support manufacturers, fabricators, OEMs, and engineering companies with fastening solutions that meet recognised industry standards and perform reliably across demanding operating environments.
DIN 985 Nylon Insert Lock Nuts are widely specified for threaded assemblies where installation space is restricted and a secure locking mechanism is required. Their compact profile and nylon insert make them suitable for applications that demand reliable fastening without increasing the overall height of the joint.
Common Applications Include:
Automotive Components – Door mechanisms, lighting assemblies, interior fittings, brackets, and other compact vehicle assemblies..
Industrial Machinery – Small machines, drive systems, guards, covers, and equipment exposed to routine operational movement.
Electrical & Control Panels – Panel assemblies, switchgear, cable support systems, and equipment mounting where space is often limited.
Fabrication & Sheet Metal Assemblies – Enclosures, fabricated frames, mounting brackets, and light structural components requiring secure threaded joints.
Maintenance & Equipment Servicing – Replacement assemblies, machine repairs, retrofit installations, and routine maintenance activities.
General Engineering Applications – Pumps, compressors, automation equipment, instrumentation, and precision assemblies where compact fastening solutions are preferred.
For applications exposed to moisture or corrosive environments, stainless steel fasteners with DIN 985 nylon insert lock nuts are commonly selected to provide long-term durability and reliable fastening performance.
Choosing the right supplier goes beyond product availability, it requires consistent quality, accurate specifications, and a supply partner who understands industrial fastening requirements. At Vimal Industrial Corporation, we help manufacturers, fabricators, OEMs, and contractors source DIN 985 Nylon Insert Lock Nuts that meet application demands without compromising on quality or compliance.
Why Our Customers Trust Us:
As established fastener suppliers, we also provide a full range of stainless steel fasteners for applications needing corrosion resistance.
| Thread d | M3 | M4 | M5 | M6 | M7 | M8 | M10 | M12 | M14 | M16 | M18 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| M8x1 | M10x1 | M12x1.5 | M14x1.5 | M16x1.5 | M18x2 | ||||||
| P | 0.5 | 0.7 | 0.8 | 1 | 1 | 1.25 | 1.5 | 1.75 | 2 | 2 | 2.5 |
| da min. | 3 | 4 | 5 | 6 | 7 | 8 | 10 | 12 | 14 | 16 | 18 |
| da max. | 3.45 | 4.6 | 5.75 | 6.75 | 7.75 | 8.75 | 10.8 | 13 | 15.1 | 17.3 | 19.5 |
| dw min. | 4.6 | 5.9 | 6.9 | 8.9 | 9.6 | 11.6 | 15.6 | 17.4 | 20.5 | 22.5 | 24.9 |
| e min. | 6.01 | 7.66 | 8.79 | 11.05 | 12.12 | 14.38 | 18.9 | 21.1 | 24.49 | 26.75 | 29.56 |
| h nominal=max | 4 | 5 | 5 | 6 | 7.5 | 8 | 10 | 12 | 14 | 16 | 18.5 |
| h min. | 3.7 | 4.7 | 4.7 | 5.7 | 7.14 | 7.64 | 9.64 | 11.57 | 13.3 | 15.3 | 17.66 |
| m min. | 2.4 | 2.9 | 3.2 | 4 | 4.7 | 5.5 | 6.5 | 8 | 9.5 | 10.5 | 13 |
| m′ min. | 1.65 | 2.2 | 2.75 | 3.3 | 3.85 | 4.4 | 5.5 | 6.6 | 7.7 | 8.8 | 9.9 |
| s nominal=max | 5.5 | 7 | 8 | 10 | 11 | 13 | 17 | 19 | 22 | 24 | 27 |
| s min. | 5.32 | 6.78 | 7.78 | 9.78 | 10.73 | 12.73 | 16.73 | 18.67 | 21.67 | 23.67 | 26.16 |
| Weight (kg/1000pcs) | 0.5 | 1 | 1.4 | 2.4 | 3 | 5.1 | 10.6 | 17.2 | 26 | 34 | 45 |
| Thread d | M20 | M22 | M24 | M27 | M30 | M33 | M36 | M39 | M42 | M45 | M48 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| M20x2 M20x1.5 |
M22x2 M22x1.5 |
M24x2 | M27x2 | M30x2 | M33x2 | M36x3 | M39x3 | M42x3 | M45x3 | M48x3 | |
| P | 2.5 | 2.5 | 3 | 3 | 3.5 | 3.5 | 4 | 4 | 4.5 | 4.5 | 5 |
| da min. | 20 | 22 | 24 | 27 | 30 | 33 | 36 | 39 | 42 | 45 | 48 |
| da max. | 21.6 | 23.7 | 25.9 | 29.1 | 32.4 | 35.6 | 38.9 | 42.1 | 45.4 | 48.6 | 51.8 |
| dw min. | 27.7 | 29.5 | 33.2 | 38 | 42.7 | 46.6 | 51.1 | 55.9 | 60.6 | 64.7 | 69.4 |
| e min. | 32.95 | 35.03 | 39.55 | 45.2 | 50.85 | 55.37 | 60.79 | 66.44 | 72.09 | 76.95 | 82.6 |
| h nominal=max | 20 | 22 | 24 | 27 | 30 | 33 | 36 | 39 | 42 | 45 | 48 |
| h min. | 18.7 | 20.7 | 22.7 | 25.7 | 28.7 | 31.4 | 34.4 | 37.4 | 40.4 | 43.4 | 46.4 |
| m min. | 14 | 15 | 15 | 17 | 19 | 22 | 25 | 27 | 29 | 32 | 36 |
| m′ min. | 11 | 12.2 | 13.2 | 14.8 | 16.5 | 18.2 | 19.8 | 21.5 | 23.1 | 24.8 | 26.5 |
| s nominal=max | 30 | 32 | 36 | 41 | 46 | 50 | 55 | 60 | 65 | 70 | 75 |
| s min. | 29.16 | 31 | 35 | 40 | 45 | 46 | 53.8 | 58.8 | 63.8 | 68.1 | 73.1 |
| Weight (kg/1000pcs) | 65 | 75 | 100 | 162 | 212 | 317 | 415 | 499 | 628 | 771 | 998 |
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The DIN 985 is a low-profile screw nut bolt designed for tight spaces where a standard nut won’t fit. Its primary job is to provide a “Prevailing Torque” lock without adding bulk. It is the most efficient bolt fastener for electrical panels, light machinery, and automotive interiors.
The nylon ring inside a DIN 985 has a smaller diameter than the bolt threads. When you drive the bolt fastener in, it forces its way through the nylon, creating a high-friction grip. This ensures your screw nut bolt assembly stays “Locked” even under constant industrial vibration.
Actually, since DIN 985 is a “Thin Type” nut, it has fewer load-bearing threads. For heavy-duty construction or crane-hooks, a Fasteners Supplier India would usually suggest the “Heavy Type” DIN 982. Use DIN 985 only when locking is more important than massive load-bearing strength.
A 10mm DIN 985 nut can come in 1.5mm (Coarse) or 1.25mm (Fine) pitch. If you try to force the wrong one, you’ll strip the threads and ruin the bolt fastener. Always double-check the TPI/Pitch with your Nut Bolt Supplier Mumbai before bulk buying.
For serious industrial work, you need “Traceable” hardware. Vimal Industrial is a leading Fasteners Supplier India that provides full Material Test Reports (MTR) with every batch of DIN 985. We ensure your screw nut bolt inventory meets global safety standards.
