Vimal Industrial Corporation is a leading stockist and supplier of DIN 963 machine screws based in Mumbai, India. Complying with DIN 963 standards, these screws feature a slotted countersunk head and metric machine thread, designed for precise, flush-fit fastening in metal and plastic components. The countersunk design allows the head to sit even with or below the surface, creating a clean, snag-free finish that’s ideal for visible or smooth-assembly applications.
We maintain a broad inventory of DIN 963 slotted countersunk machine screws in a variety of materials, diameters, and protective finishes. Serving OEMs, fabricators, panel builders, and maintenance engineers, we deliver fasteners that combine precise manufacturing tolerances with dependable, long-term performance.
As India’s industrial and electrical fabrication sectors increasingly require flush-mounted fastening solutions, DIN 963 machine screws remain an essential choice. Vimal Industrial Corporation, in partnership with APL Fasteners, maintains extensive ready stock covering M1.6 to M10 thread sizes, with standard and fine-pitch variants.
Every batch is tested to DIN 963 dimensional tolerances, ensuring perfect compatibility with mating components. Our Mumbai warehouse stores all products in controlled conditions and provides mill certificates, inspection reports, and lot-traceable documentation upon request. Through our nationwide logistics network, we guarantee same-day dispatch for urgent requirements and just-in-time supply for production lines and EPC projects.
DIN 963 screws are used where flush finishing, precision alignment, and clean aesthetics are critical:
Electrical Panels & Instrumentation – for control assemblies and terminal plates.
Automotive & Aerospace Components – where aerodynamic or aesthetic flush mounting is required.
Electronics & Appliances – for casings, plates, and chassis requiring smooth surface integration.
Furniture & Fixtures – for metal fittings and decorative joints with concealed heads.
Machinery & Fabrication – for joining sheet components where head protrusion must be avoided.
General Engineering & MRO – maintenance and retrofits using traditional slotted drivers.
With decades of industrial fastener expertise, Vimal Industrial Corporation is trusted by manufacturers and contractors for authentic sourcing, precision quality, and timely fulfillment.
Why clients choose us:
✅ Authorized APL Fasteners Dealer – genuine products with complete mill documentation
✅ Comprehensive Stock Range – all diameters, lengths, and finishes available ex-stock
✅ Custom & Bulk Packing – export pallets, labeled kits, or bar-coded cartons
✅ Technical Guidance – support for head selection, drive fitment, and torque specifications
✅ Pan-India Reach – efficient supply from our Mumbai warehouse to every major industry hub
✅ Quality Control – every lot verified to DIN 963 dimensions and ISO mechanical standards
✅ Customer-Focused Service – fast quotations, dedicated account handling, and export documentation
Whether for OEM assembly lines, maintenance workshops, or project installations, we make procurement of DIN 963 machine screws simple, traceable, and reliable.
| Thread d | M1 | M1.2 | M1.4 | M1.6 | M2 | M2.5 | M3 | (M3.5) | M4 | M5 |
|---|---|---|---|---|---|---|---|---|---|---|
| P | 0.25 | 0.25 | 0.3 | 0.35 | 0.4 | 0.45 | 0.5 | 0.6 | 0.7 | 0.8 |
| a max. | 0.5 | 0.5 | 0.6 | 0.7 | 0.8 | 0.9 | 1 | 1.2 | 1.4 | 1.6 |
| b min. | full thread | 15 | 16 | 18 | 19 | 20 | 22 | 25 | ||
| dk nominal=max. | 1.9 | 2.3 | 2.6 | 3 | 3.8 | 4.7 | 5.6 | 6.5 | 7.5 | 9.2 |
| dk min. | 1.76 | 2.06 | 2.46 | 2.86 | 3.5 | 4.4 | 5.3 | 6.14 | 7.14 | 8.84 |
| k max. | 0.6 | 0.72 | 0.86 | 0.96 | 1.2 | 1.5 | 1.65 | 1.93 | 2.2 | 2.5 |
| n nominal | 0.25 | 0.3 | 0.3 | 0.4 | 0.5 | 0.6 | 0.8 | 0.8 | 1 | 1.2 |
| n max. | 0.31 | 0.36 | 0.36 | 0.46 | 0.56 | 0.66 | 0.86 | 0.96 | 1.06 | 1.26 |
| n min. | 0.45 | 0.5 | 0.5 | 0.6 | 0.7 | 0.8 | 1 | 1 | 1.2 | 1.51 |
| r max. | 0.1 | 0.12 | 0.14 | 0.16 | 0.2 | 0.25 | 0.3 | 0.35 | 0.4 | 0.5 |
| t min. | 0.2 | 0.25 | 0.28 | 0.32 | 0.4 | 0.5 | 0.6 | 0.7 | 0.8 | 1 |
| t max. | 0.3 | 0.35 | 0.4 | 0.45 | 0.6 | 0.7 | 0.85 | 1 | 1.1 | 1.3 |
| x max. | - | - | - | 0.9 | 1 | 1.1 | 1.25 | 1.5 | 1.75 | 2 |
| l (weight 7.85 kg/dm³ per 1000 pcs) | ||||||||||
| nominal | min. / max. values below | |||||||||
| 2 | 1.8 | 2.2 | 0.014 | 0.023 | 0.033 | 0.046 | ||||
| 3 | 2.8 | 3.2 | 0.019 | 0.031 | 0.042 | 0.058 | 0.101 | 0.175 | ||
| 4 | 3.75 | 4.25 | 0.023 | 0.037 | 0.051 | 0.069 | 0.119 | 0.206 | 0.291 | 0.434 |
| 5 | 4.75 | 5.25 | 0.027 | 0.043 | 0.06 | 0.081 | 0.137 | 0.236 | 0.335 | 0.494 |
| 6 | 5.75 | 6.25 | 0.049 | 0.069 | 0.093 | 0.152 | 0.266 | 0.379 | 0.554 | 0.754 |
| 8 | 7.7 | 8.3 | 0.087 | 0.116 | 0.193 | 0.326 | 0.467 | 0.673 | 0.9 | 1.45 |
| 10 | 9.7 | 10.3 | 0.105 | 0.139 | 0.231 | 0.386 | 0.555 | 0.792 | 1.06 | 1.7 |
| 12 | 11.65 | 12.35 | 0.268 | 0.446 | 0.643 | 0.911 | 1.22 | 1.95 | ||
| (14) | 13.65 | 14.35 | 0.306 | 0.507 | 0.731 | 1.03 | 1.37 | 2.19 | ||
| 16 | 15.65 | 16.35 | 0.343 | 0.567 | 0.82 | 1.15 | 1.53 | 2.44 | ||
| (18) | 17.65 | 18.35 | 0.381 | 0.627 | 0.908 | 1.27 | 1.68 | 2.69 | ||
| 20 | 19.6 | 20.4 | 0.687 | 0.996 | 1.39 | 1.84 | 2.94 | |||
| (22) | 21.6 | 22.4 | 0.747 | 1.08 | 1.51 | 1.99 | 3.18 | |||
| 25 | 24.6 | 25.4 | 0.838 | 1.22 | 1.69 | 2.22 | 3.55 | |||
| (28) | 27.6 | 28.4 | 1.35 | 1.87 | 2.46 | 3.93 | ||||
| 30 | 29.6 | 30.4 | 1.44 | 1.99 | 2.61 | 4.16 | ||||
| 35 | 34.5 | 35.5 | 2.29 | 2.99 | 4.76 | |||||
| 40 | 39.5 | 40.5 | 3.36 | 5.39 | ||||||
| 45 | 44.5 | 45.5 | 6.02 | |||||||
| 50 | 49.5 | 50.5 | 6.65 | |||||||
| 55 | 54 | 56 | ||||||||
| 60 | 59 | 61 | ||||||||
| 70 | 69 | 71 | ||||||||
| 80 | 79 | 81 | ||||||||
| 90 | 89 | 91 | ||||||||
| 100 | 99 | 101 | ||||||||
DIN 963 machine screws are slotted countersunk head screws with metric threads, designed for flush installation in metal and non-metal assemblies. The countersunk head allows for a smooth finish, preventing obstruction and improving overall aesthetics.
DIN 963 screws are manufactured in thread sizes ranging from M1.6 to M10 and in various lengths depending on application. The standard defines head diameter, slot width, and countersunk angle (typically 90°) for uniform fitment across precision assemblies.
They are produced in carbon steel, stainless steel (A2 / A4), brass, and alloy steel, depending on performance requirements. Finishes include zinc plating, nickel coating, black oxide, and plain/oiled, providing protection against corrosion and wear.
DIN 963 screws are ideal for electrical panels, instruments, appliances, machinery, furniture, and automotive assemblies—anywhere a flush, professional finish is required. Their slotted drive makes them compatible with standard screwdrivers and accessible in confined assembly areas.
As an authorized APL Fasteners dealer, Vimal Industrial Corporation supplies DIN 963 machine screws that meet international quality standards. With ready stock, certified quality assurance, and pan-India delivery, we ensure fast turnaround and reliable supply for every scale of project.
