Vimal Industrial Corporation is a leading stockist and supplier of DIN 916 socket set screws based in Mumbai, India. Manufactured according to DIN 916 standards, these fasteners feature an internal hex (Allen) drive with a cup-point tip, designed to deliver strong, vibration-resistant holding power in shafts, collars, pulleys, couplings, and mechanical locking applications. DIN 916 screws are engineered for precision clamping where a headless, flush-fitting fastener is essential.
With a comprehensive inventory covering multiple diameters, lengths, property classes, and corrosion-resistant materials, we support OEMs, machine builders, automation companies, MRO teams, and engineering contractors requiring reliable, high-strength set screws for critical holding and alignment tasks.
DIN 916 cup-point screws are one of the most widely used set-screw types for secure locking, high surface penetration, and strong resistance to loosening under motion. Vimal Industrial Corporation maintains ready stock from M3 up to M24, with standard high-tensile grades such as 45H, 12.9, and stainless-steel options for corrosive environments.
All screws comply with DIN dimensional tolerances, ensuring correct socket depth, point geometry, thread tolerance, and hardness. Products are stored in climate-controlled warehouses, backed with mill test certificates, chemical and mechanical property reports, lot-traceability, and optional third-party inspection. With our Mumbai warehouse and nationwide logistics capability, we ensure quick dispatch for both urgent breakdown maintenance and scheduled project needs.
DIN 916 cup-point screws are used where strong, localized clamping and a headless, hidden fastening solution is required:
Shaft & Collar Locking – securing hubs, gears, collars, pulleys, and sprockets
Machine Assembly & Automation – alignment of guides, cams, levers, and linkages
Motors & Power Transmission – fixing couplings, universal joints, and rotating components
Instrumentation & Precision Devices – fine adjustment of moving elements
Fixtures, Jigs & Tooling – locking pins, stops, and movable components
General Engineering & MRO – retrofit and repair work requiring compact fastening
Vimal Industrial Corporation is trusted across India for high-quality sourcing, traceable supply, and fast fulfillment of precision fasteners.
Why clients choose us:
✅ Authorized APL Fasteners Dealer – assured genuine, standard-compliant set screws
✅ Complete Stock Range – high-tensile alloy steel, case-hardened, and stainless-steel variants
✅ Custom Packing Options – OEM kits, bar-coded cartons, and export-grade pallets
✅ Technical Guidance – selection of correct point type, torque requirements, and seating recommendations
✅ Pan-India Delivery – same-day dispatch from Mumbai to major industrial corridors
✅ Strict Quality Control – DIN-compliant dimensions, hardness checks, and test certificates
✅ Customer-Focused Service – quick quotations, dedicated managers, and export support
Whether for power transmission, machinery construction, automation systems, or precision equipment, we provide DIN 916 socket set screws that deliver dependable locking performance and verified quality.
| Thread d | M1.4 | M1.6 | M2 | M2.5 | M3 | M4 | M5 | M6 | M8 | M10 | M12 | M16 | M20 | M24 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| P | 0.3 | 0.35 | 0.4 | 0.45 | 0.5 | 0.7 | 0.8 | 1 | 1.25 | 1.5 | 1.75 | 2 | 2.5 | 3 |
| dv | 0.7 | 0.8 | 1 | 1.2 | 1.4 | 2.5 | 3 | 5 | 6 | 8 | 10 | 14 | 16 | 16 |
| 0.45 | 0.55 | 0.75 | 0.95 | 1.15 | 1.75 | 2.25 | 2.75 | 4.7 | 5.7 | 7.64 | 9.64 | 13.57 | 15.57 | |
| df | Lower limit of minor thread diameter | |||||||||||||
| e min. | 0.8 | 0.803 | 1.003 | 1.427 | 1.73 | 2.3 | 2.87 | 3.44 | 4.58 | 5.72 | 6.86 | 9.15 | 11.43 | 13.72 |
| nominal | 0.7 | 0.7 | 0.9 | 1.3 | 1.5 | 2 | 2.5 | 3 | 4 | 5 | 6 | 8 | 10 | 12 |
| s | 0.71 | 0.711 | 0.89 | 1.27 | 1.52 | 2.02 | 2.52 | 3.02 | 4.02 | 5.02 | 6.02 | 8.025 | 10.025 | 12.032 |
| 0.72 | 0.724 | 0.9 | 1.295 | 1.545 | 2.045 | 2.56 | 3.08 | 4.095 | 5.095 | 6.095 | 8.115 | 10.115 | 12.142 | |
| t | 0.6 | 0.7 | 0.8 | 1.2 | 1.2 | 1.5 | 2 | 2 | 3 | 4 | 4.5 | 6.4 | 8 | 10 |
| 1.4 | 1.5 | 1.7 | 2 | 2 | 2.5 | 3 | 3 | 3.5 | 5 | 6 | 8 | 10 | 15 | |
| Thread d | M1.4 | M1.6 | M2 | M2.5 | M3 | M4 | M5 | M6 | M8 | M10 | M12 | M16 | M20 | M24 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| P | 0.3 | 0.35 | 0.4 | 0.45 | 0.5 | 0.7 | 0.8 | 1 | 1.25 | 1.5 | 1.75 | 2 | 2.5 | 3 | |
| l | Weight (7.85kg/dm3) kg/1000pcs | ||||||||||||||
| Nominal | min. | max. | |||||||||||||
| 2.5 | 2.3 | 2.7 | 0.018 | 0.019 | |||||||||||
| 3 | 2.8 | 3.2 | 0.022 | 0.028 | 0.044 | 0.075 | |||||||||
| 4 | 3.76 | 4.24 | 0.029 | 0.037 | 0.059 | 0.1 | 0.14 | ||||||||
| 5 | 4.76 | 5.24 | 0.036 | 0.046 | 0.074 | 0.125 | 0.18 | 0.255 | 0.42 | ||||||
| 6 | 5.76 | 6.24 | 0.043 | 0.056 | 0.089 | 0.15 | 0.22 | 0.38 | 0.54 | 0.74 | |||||
| 8 | 7.71 | 8.29 | 0.119 | 0.199 | 0.31 | 0.53 | 0.78 | 1.09 | 1.88 | ||||||
| 10 | 9.71 | 10.29 | 0.148 | 0.249 | 0.4 | 0.68 | 1.02 | 1.44 | 2.51 | ||||||
| 12 | 11.65 | 12.35 | 0.49 | 0.83 | 1.26 | 1.79 | 3.14 | 4.73 | |||||||
| 16 | 15.65 | 16.35 | 0.67 | 1.13 | 1.74 | 2.49 | 4.4 | 6.73 | 9.5 | ||||||
| 20 | 19.58 | 20.42 | 0.85 | 1.43 | 1.22 | 3.19 | 5.66 | 8.71 | 12.3 | 20.9 | |||||
| 25 | 24.58 | 25.42 | 2.82 | 4.07 | 7.25 | 11.2 | 15.9 | 27.4 | 41.4 | ||||||
| 30 | 29.58 | 30.42 | 4.95 | 8.84 | 13.7 | 19.5 | 34 | 51.7 | 70.3 | ||||||
| 35 | 34.5 | 35.5 | 5.83 | 10.4 | 16.2 | 23.1 | 40.5 | 62 | 85.3 | ||||||
| 40 | 39.5 | 40.5 | 12 | 18.7 | 26.7 | 47.1 | 72.3 | 100 | |||||||
| 45 | 44.5 | 45.5 | 82.6 | 115 | |||||||||||
| 50 | 49.5 | 50.5 | 92.9 | 130 | |||||||||||
| 55 | 54.4 | 55.6 | 145 | ||||||||||||
| 60 | 59.4 | 60.6 | 160 | ||||||||||||
The DIN 916 is built with a unique hollowed-out “cup” at the tip. When you torque this screw nut bolt down, the thin edges of the cup dig a circular trench into the shaft. This provides a double-action grip that resists both radial and axial movement. If you need a bolt fastener that won’t budge under high-speed rotation, this is the industry standard.
It’s the most versatile set screw ever made. Unlike the sharp cone point (DIN 914) that can crack a shaft, the cup point of the DIN 916 provides a high-friction lock with less risk of material fatigue. Every Nut Bolt Supplier stocks these in the highest volume because they fit 90% of all pulley and gear applications.
Technically yes, but there’s a catch. The sharp edge of the cup flattens slightly after the first high-torque installation. If you reuse it, the “Bite” won’t be as deep. For safety-critical fasteners screw bolts in heavy machinery, we always recommend a fresh screw nut bolt to ensure a 100% secure grip every time.
The DIN 916 is designed to disappear. By sitting flush inside the hole, it allows rotating collars and shafts to spin without a protruding bolt fastener head causing a safety hazard or unbalancing the machine. It’s the “Secret Agent” of the Industrial Hardware world, doing its job while staying invisible.
If you need 100% traceability and immediate delivery, Vimal Industrial is the premier Nut Bolt Supplier Mumbai. We don’t just move boxes; we provide the Material Test Reports (MTR) and technical backing to ensure your fasteners screws bolts assembly is safe and up to international DIN standards.
