With high demand across machinery, infrastructure, and general engineering sectors, DIN 933 Hex Head Full Thread Bolts are a critical fastening solution for high-load assemblies. Unlike partially threaded bolts, DIN 933 bolts are fully threaded along the entire shank, ensuring maximum grip and length adjustment flexibility in bolted joints.
Vimal Industrial Corporation supplies a wide range of DIN 933 fasteners in mild steel, alloy steel, and stainless steel options, suitable for diverse strength classes such as 8.8, 10.9, and 12.9. As a trusted fastener supplier based in Mumbai, we ensure timely delivery, consistent dimensional tolerance, and competitive pricing for all our industrial-grade bolts.
With increasing demand for high-torque and full-engagement fastening solutions, Hex Head Full Thread Bolts (DIN 933) have become essential across engineering, automotive, and construction industries. These bolts offer continuous threading from head to tip, providing excellent grip length and making them ideal for adjustable connections, through-holes, and clamping assemblies.
At Vimal Industrial Corporation, we supply a wide range of DIN 933 bolts that meet international quality and dimensional standards. Whether you’re sourcing fasteners for OEM production, equipment repairs, or high-volume industrial use, our Mumbai-based supply chain ensures fast delivery and technical support. As an authorized APL Fasteners dealer, we offer material traceability, quality certifications, and reliable inventory for all thread sizes and property classes.
DIN 933 bolts, also known as full thread hex head bolts, are engineered for precision clamping and strong fastening in high-tensile environments. Their full threading allows maximum adjustability and engagement, making them ideal for load-distribution in mechanical joints and dynamic assemblies.
Common application areas include:
General Machinery and Equipment Assembly
Used for bolting together machine frames, brackets, and supports with full engagement along the bolt length.
Construction and Infrastructure Projects
Ideal for installing metal formwork, temporary scaffolding, and fastening into anchor plates.
Electrical Panel Mounting and Fixtures
Preferred for their precision fit in control panels, busbars, and mounting assemblies.
Power Plants and Refineries
Suited for high-stress environments, ensuring secure load distribution in critical components.
OEM Production and Maintenance Tasks
Frequently used in production lines and service applications due to their standard sizing and versatility.
These bolts are preferred where strong clamping force, precise adjustability, and full-length thread engagement are essential for the integrity of the assembly.
As a trusted supplier of DIN-standard fasteners in Mumbai, Vimal Industrial Corporation offers clients unmatched reliability, technical support, and sourcing efficiency. We provide high-performance DIN 933 full thread hex bolts in a wide range of grades and finishes suitable for any industrial requirement.
Ready Stock Availability – Immediate dispatch for commonly used sizes and grades from our Mumbai warehouse.
Certified Product Range – All bolts are sourced from certified manufacturers and conform to international DIN and ISO standards.
Support for Bulk Orders and Customization – Project-based supply support with custom sizes, coating requirements, and documentation.
Competitive Pricing – Transparent, cost-effective pricing for wholesale and long-term procurement.
Pan India Delivery Network – Efficient logistics to all major industrial cities including Pune, Ahmedabad, Delhi, and Chennai.
Expert Support Team – Quick response for inquiries, technical clarification, and MTC or test certificate needs.
Whether you’re a fabrication unit, EPC contractor, automotive vendor, or equipment manufacturer, we ensure quality-assured supply of DIN 933 bolts with full compliance and reliability.
| Thread size | p 1) | b - up to and including 125 mm | b - over 125 mm | b - over 200 mm | da max. | dw min. | e min. | k max. | k min. | s |
|---|---|---|---|---|---|---|---|---|---|---|
| M5 | 0.8 | 16 | 22 | – | 5.35 | 8.45 | 8.79 | 3.7 | 3.2 | 8 |
| M6 | 1 | 18 | 24 | – | 6.45 | 10.45 | 11.05 | 4.48 | 4.05 | 10 |
| M8 | 1.25 | 22 | 28 | – | 8.45 | 13.55 | 14.38 | 5.28 | 4.95 | 13 |
| M10 | 1.5 | 26 | 32 | 45 | 10.45 | 16.55 | 18.9 | 6.22 | 5.95 | 17 |
| M12 | 1.75 | 30 | 36 | 49 | 13 | 18.65 | 20.03 | 7.32 | 7.05 | 19 |
| M14 | 2 | 34 | 40 | 53 | 15 | 21.65 | 23.35 | 8.79 | 8.55 | 22 |
| M16 | 2 | 38 | 44 | 57 | 17 | 24.65 | 26.75 | 10.28 | 10.05 | 24 |
| M20 | 2.5 | 46 | 52 | 65 | 21 | 30.65 | 33.53 | 12.52 | 12.25 | 30 |
| M24 | 3 | 54 | 60 | 73 | 25 | 36.57 | 39.98 | 15.14 | 14.75 | 36 |
| M30 | 3.5 | 66 | 72 | 85 | 31 | 45.57 | 48.38 | 18.28 | 17.75 | 46 |
| M36 | 4 | 78 | 84 | 97 | 37 | 54.57 | 58.8 | 21.42 | 20.95 | 55 |
In thin-plate assemblies, a DIN 933 is ideal because the threads run right up to the head, allowing the nut to tighten fully against the surface. Unlike partial threads, there is no unthreaded shank to get in the way, ensuring a gap-free, secure joint.
Yes, but since they are fully threaded, they have a larger surface area for friction. To maximize security in high-vibration zones, many engineers in India pair these hex head bolts with spring washers or nylon lock nuts to prevent accidental loosening.
The biggest advantage here is “Total Engagement.” A full thread bolt can be screwed deep into a tapped hole, providing maximum grip strength throughout the entire depth. This is a common requirement for engine blocks and heavy industrial bases.
Absolutely, provided you use the SS 316 (A4) grade. The full threading makes it very easy to adjust flange connections and valves, while the high-grade stainless steel resists the corrosive “pitting” caused by salt water.
Coarse threads are faster to install and harder to strip, making them great for general construction. Fine threads are better for precision adjustments. Most stockists like Vimal Industrial carry the standard coarse threads as they are the most versatile for industrial use.
