Vimal Industrial Corporation is a reliable DIN 439 B hexagon thin nuts supplier and one of the trusted fastener suppliers based in Mumbai, India. We offer precision-engineered DIN hexagon thin nut solutions, widely used as jam nuts or lock nuts in applications where space efficiency and secure fastening are critical. Designed as per DIN standards, these nuts ensure consistent performance, accurate threading, and dependable locking under varying load conditions.
Our DIN 439 B hexagon thin nut range is manufactured using high-quality carbon steel and stainless steel, making us a preferred choice among stainless steel fasteners suppliers. These nuts are ideal for industries that require durability, corrosion resistance, and dimensional accuracy in compact fastening solutions.
DIN 439 B specifies thin-profile hexagon nuts with chamfered edges and standard metric threads. Compared to full-height nuts, a hexagon thin nut is nearly half the thickness, making it suitable for:
As a leading hexagon thin nut supplier, we provide these fasteners in multiple property classes for both general-purpose and high-strength requirements. Stainless steel variants are also available for demanding environments such as chemical processing, food-grade applications, and outdoor installations.
Our DIN hexagon thin nut offerings come in various surface finishes, including zinc-plated, hot-dip galvanized, black oxide, plain/oiled, and PTFE-coated, ensuring suitability across diverse environmental and operational conditions.
With growing demand for vibration-resistant fastening systems, DIN 439 B hexagon thin nut is widely used across automotive, machinery, and infrastructure sectors. Vimal Industrial Corporation is a trusted hexagon thin nut supplier and one of the reliable fastener suppliers in Mumbai, offering ready stock for OEMs, MROs, and EPC projects.
As an authorized APL Fasteners dealer, we supply high-quality DIN hexagon thin nut options in multiple grades and finishes. Our efficient logistics ensure quick dispatch across India, backed with proper documentation, traceability, and inspection support when required.
The DIN 439 B hexagon thin nut is widely used in applications where space-saving design and vibration-resistant locking are required. These hexagon thin nuts are commonly used as jam nuts to ensure secure fastening in compact assemblies.
Common Applications Include:
Mechanical & Automotive Equipment
Used as locking nuts on shafts, spindles, and steering assemblies where vibration resistance and preload retention are critical.
Hydraulic & Pneumatic Fittings
Ideal for securing valve connections, hose fittings, and gland assemblies in confined spaces where standard nuts cannot be used.
Heavy Machinery & Construction Plant
Applied in crushers, vibrating screens, and construction machinery to prevent loosening under continuous load and vibration.
Electrical & Instrumentation Panels
Used for terminal connections, stud mounting, and internal panel fittings where installation depth is limited.
General Engineering & Fabrication
Suitable for various industrial applications requiring a low-profile hexagon thin nut supplier solution for secondary locking and compact fastening.
As a trusted name in the industrial fasteners sector, Vimal Industrial Corporation is recognized for reliable sourcing, timely delivery, and strong technical expertise. We supply high-quality DIN 439 B hexagon thin nut solutions that meet global standards, serving industries such as automotive, infrastructure, power, and heavy engineering.
Why clients across India choose us:
✅ Authorized APL Fasteners Dealer – Genuine DIN hexagon thin nut products with complete mill test certification.
✅ Ready Stock Availability – Wide range of grades, stainless options, and surface finishes for quick dispatch.
✅ Project-Specific Supply – Custom packing, barcoded kits, palletized shipments, and JIT deliveries for site requirements.
✅ Technical Support – Guidance on torque locking, material selection, and use of hexagon thin nut in jam nut applications.
✅ Pan-India Distribution – Fast shipping from Mumbai to industrial hubs and remote project locations.
✅ Quality Assurance – Products conform to DIN 439 B standards with inspection and third-party testing options.
✅ Customer-Focused Service – Quick quotations, dedicated support, and complete documentation for domestic and export orders.
Whether you are an OEM, contractor, or industrial buyer, we ensure smooth procurement of fastener suppliers backed by reliability, accuracy, and consistent supply.
| Thread size d | M1,6 | (M1,8) | M2 | M2,5 | M3 | (M3,5) | M4 | M5 | M6 |
|---|---|---|---|---|---|---|---|---|---|
| P | 0,35 | 0,35 | 0,4 | 0,45 | 0,45 | 0,6 | 0,7 | 0,8 | 1 |
| da min. | 1,6 | 1,8 | 2 | 2,5 | 3 | 3,5 | 4 | 5 | 6 |
| da max. | 1,84 | 2,06 | 2,3 | 2,9 | 3,45 | 4 | 4,6 | 5,75 | 6,75 |
| dw min. | 2,4 | 2,7 | 3,1 | 4,1 | 4,6 | 5,1 | 5,9 | 6,9 | 8,9 |
| e min. | 3,48 | 3,82 | 4,32 | 5,45 | 6,01 | 6,58 | 7,66 | 9,79 | 11,05 |
| m max. | 1 | 1,1 | 1,2 | 1,6 | 1,8 | 2 | 2,2 | 2,7 | 3,2 |
| m min. | 0,75 | 0,85 | 0,95 | 1,35 | 1,55 | 1,75 | 1,95 | 2,45 | 2,9 |
| m´ min. | 0,6 | 0,68 | 0,76 | 1,06 | 1,24 | 1,4 | 1,56 | 1,96 | 2,32 |
| s max. | 3,2 | 3,5 | 4 | 5 | 5,5 | 6 | 7 | 8 | 10 |
| s min. | 3,08 | 3,38 | 3,82 | 4,82 | 5,32 | 5,82 | 6,78 | 7,78 | 9,78 |
| Thread size d | M8 | M10 | M12 | (M14) | M16 | (M18) | M20 | (M22) | M24 |
|---|---|---|---|---|---|---|---|---|---|
| M8×1 | M10×1 | M12×1,25 | (M14×1,5) | M16×1,5 | (M18×1,5) | M20×2 | (M22×1,5) | M24×2 | |
| – | M10×1,25 | M12×1,25 | – | – | (M18×2) | M20×1,5 | (M22×2) | (M24×1,5) | |
| P | 1,25 | 1,5 | 1,75 | 2 | 2 | 2,5 | 2,5 | 2,5 | 3 |
| da min. | 8 | 10 | 12 | 14 | 16 | 18 | 20 | 22 | 24 |
| da max. | 8,75 | 10,8 | 13 | 15,1 | 17,3 | 19,5 | 21,6 | 23,8 | 25,9 |
| dw min. | 11,6 | 15,6 | 17,4 | 20,5 | 22,5 | 24,9 | 27,7 | 29,5 | 33,2 |
| e min. | 14,38 | 18,9 | 21,1 | 24,49 | 26,75 | 29,56 | 32,95 | 35,03 | 39,55 |
| m max. | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
| m min. | 3,7 | 4,7 | 5,7 | 6,42 | 7,42 | 8,42 | 9,1 | 9,9 | 10,9 |
| m´ min. | 2,96 | 3,76 | 4,56 | 5,14 | 5,94 | 6,74 | 7,28 | 7,92 | 8,72 |
| s max. | 13 | 17 | 19 | 22 | 24 | 27 | 30 | 32 | 36 |
| s min. | 12,73 | 16,73 | 18,67 | 21,67 | 23,67 | 26,16 | 29,16 | 31 | 35 |
| Thread size d | (M27) | M30 | (M33) | M36 | (M39) | M42 | (M45) | M48 | (M52) |
|---|---|---|---|---|---|---|---|---|---|
| (M27×2) | M30×2 | (M33×2) | M36×3 | (M39×3) | M42×3 | (M45×3) | M48×3 | (M52×3) | |
| – | – | – | M36×2 | (M39×2) | M42×2 | (M45×2) | M48×2 | (M52×2) | |
| (M27×1,5) | M30×1,5 | – | M36×1,5 | (M39×1,5) | M42×1,5 | (M45×1,5) | M48×1,5 | (M52×1,5) | |
| P | 3 | 3,5 | 3,5 | 4 | 4 | 4,5 | 4,5 | 5 | 5 |
| da min. | 27 | 30 | 33 | 36 | 39 | 42 | 45 | 48 | 52 |
| da max. | 29,2 | 32,4 | 35,6 | 38,9 | 42,1 | 45,4 | 48,6 | 51,8 | 56,2 |
| dw min. | 38 | 42,7 | 46,6 | 51,1 | 55,9 | 60 | 64,7 | 69,4 | 74,2 |
| e min. | 45,2 | 50,85 | 55,37 | 60,79 | 66,44 | 71,3 | 76,95 | 82,6 | 88,25 |
| m max. | 13,5 | 15 | 16,5 | 18 | 19,5 | 21 | 22,5 | 24 | 26 |
| m min. | 12,4 | 13,9 | 15,4 | 16,9 | 18,2 | 19,7 | 21,2 | 22,7 | 24,7 |
| m´ min. | 9,9 | 11,1 | 12,3 | 13,5 | 14,6 | 15,8 | 17 | 18,2 | 19,8 |
| s max. | 41 | 46 | 50 | 55 | 60 | 65 | 70 | 75 | 80 |
| s min. | 40 | 45 | 49 | 53,8 | 58,8 | 63,1 | 68,1 | 73,1 | 78,1 |
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A DIN 439 B is essentially a low-profile hex nut used when vertical space is limited. It is often used as a “Jam Nut,” where it is tightened against a standard nut to lock the bolt fastener in place and prevent it from loosening due to vibration.
They are called Jam Nuts because they “jam” against another nut to create friction. In many industrial setups in India, engineers use this double-nutting technique to ensure the assembly stays secure without using chemical thread-lockers.
You can find them in carbon steel, galvanized steel, and Stainless Steel Fasteners (A2/A4). For projects in Mumbai, SS 316 is the preferred choice to ensure the thin profile doesn’t weaken over time due to salt-water corrosion.
Yes, the “B” version (DIN 439 B) has chamfered edges (rounded corners) on both sides, making it easier to install and more aesthetic. This is the standard version of most Nut Bolt Supplier stocks in Mumbai for general engineering use.
Precision is key with thin nuts. If the threads aren’t cut perfectly, the nut can strip easily under pressure. A trusted Fasteners Supplier India like Vimal Industrial ensures that even the thinnest nuts meet international DIN standards for thread accuracy.
