You save 930 (33%)
33% off the seller list price
Doorstep delivery by 23 Oct - 25 Oct from USA
Secure Your DIY Project with Authentic USA-Imported Couplings
daier 12mm Flange Coupling Connectors (4-Piece Set) are crafted from robust 45# alloy steel, offering superior sturdiness and insulation compared to copper or aluminum. The heat and electroplated finish ensures a stable, reliable connection for your DIY RC model motors and other shaft axis fittings. This set provides a precise fit for 12mm shafts, making it an ideal accessory for hobbyists and small-scale engineering projects. All customs duties and GST are included in the price, with delivery via ExpressBox.
These rigid flange couplings are essential for projects requiring a direct, stable connection between motor shafts and driven components. While they do not offer flexibility, their precise machining ensures minimal vibration and secure power transfer. For those in India seeking reliable mechanical components, CrowCrowCrow imports these authentic parts, ensuring no hidden charges at delivery.
Engineered for Precision in DIY Projects
These daier flange coupling connectors are engineered from robust 45# alloy steel, offering superior sturdiness and insulation for stable shaft connections. Unlike softer metals, this material ensures a reliable, long-lasting fit for your DIY RC model motors and other shaft axis applications. The precise 12mm inner diameter and included M4 screws and hex wrench simplify installation, making them a go-to choice for hobbyists needing dependable performance without complex alignment procedures. Imported directly from authorized US retailers, these parts guarantee authenticity and quality for your critical projects.
Ideal for Hobbyists, Less for Industrial
These couplings are best suited for DIY RC airplane boat models and small motor shaft connections where precise, rigid alignment is required. They are not designed for industrial machinery or applications requiring flexibility or shock absorption. If your project involves significant vibration, requires angular or parallel shaft misalignment compensation, or demands heavy-duty torque transmission, consider specialized industrial couplings. For basic DIY needs, these offer a cost-effective and straightforward solution.
Typical situations where daier 12mm Flange Coupling Connector Set with Hex Wrench | 4-Piece Alloy Steel Rigid Shaft Coupler helps — illustrative scenarios, not customer reviews.
A hobbyist in Chennai building a custom RC boat needs to connect a 12mm motor shaft to a propeller shaft.
The daier 12mm flange coupling provides a rigid, stable connection using durable 45# alloy steel. The included M4 screws and hex wrench ensure a secure fit, preventing slippage during operation in humid coastal conditions. This imported part ensures authenticity and reliable performance for the project.
A maker in Delhi is assembling a small CNC machine and needs to connect a stepper motor to a lead screw with precise alignment.
The daier 12mm rigid flange coupling ensures a direct, zero-play connection between the motor and lead screw. Its 45# steel construction offers the necessary rigidity for accurate motion control. The included M4 fastening screws allow for a secure mount, critical for precision machining tasks.
| Application | DIY RC Model Motors, Shaft Axis Fittings |
| Shaft Size Compatibility | 12mm |
| Included Accessories | 1x M4 Mini Hex Wrench, 8x M4 Fastening Screws |
| Cost per use | 4 couplings in pack — ₹463 per coupling |
| Feature | daier 12mm Flange | Others |
|---|---|---|
| Material Strength | Durable 45# Alloy Steel with heat/electroplated finish | Varies by brand; some may use softer metals like aluminum or basic steel without specialized finishing. |
| Precision Fit | Precise 12mm inner diameter for stable, rigid connection | Bore sizes may vary; metric (mm) or fractional inch options available, requiring careful shaft matching. |
| Included Hardware | Set includes 4 couplings, 8 M4 screws, 1 M4 hex wrench | Often sold as couplings only; screws and wrenches may be separate purchases or of lower quality. |
| Cost per Coupling | 4 couplings in pack — ₹463 per coupling | Local couplings may range from ₹150-₹400 per piece depending on size and material. |
| Corrosion Resistance | Heat and electroplated finish provides good resistance | Basic steel options may rust in humid Indian environments; stainless steel alternatives are pricier. |
| SKU | mgb5563 |
| Brand | daier |
| Model Number | H423*4 |
| Part Number | H423*4 |
| Material | 45# Steel / Alloy Steel |
| Exterior Finish | Aluminum, Steel |
| Color | Silver |
| Inner Diameter | 12mm |
| Height | 13mm |
| Fixed Hole Screw Size | M4 |
| Fastener Type | Hex |
| Thread Size | M4 |
| Thread Class | Class 2A |
| Thread Style | Metric, External |
| Number of Items | 4 |
| Set Name | 4-Piece Flange Coupling Connector Set |
| Item Shape | Round |
| Country of Origin | Not stated by manufacturer — US retail version, sourced from authorized US retailers and authorized brand partners |
About daier
daier specializes in precision mechanical components and accessories for DIY models and hobbyist projects, focusing on reliable connections and functional design.
Compliance & Legal
No product-specific compliance warnings identified. Standard imported-goods terms apply: customs duties & GST paid; for personal use in India; follow the manufacturer's usage instructions on the packaging.
Share your experience
Bought this from CrowCrowCrow? Other buyers want to hear how it went.
This item:
daier 12mm Flange Coupling Connector Set with Hex Wrench | 4-Piece Alloy Steel Rigid Shaft Coupler
1,850
This item
daier 12mm Flange Coupling Connector Set with Hex Wrench | 4-Piece Alloy Steel Rigid Shaft Coupler
1,850
Total price:
5,000
You save 3,510 (41%) Extra3 items selected
3 items
5,000You save 3,510 (41%) Extra
| Attributes | Current |  |  |  |  |  |  |
|---|---|---|---|---|---|---|---|
| Spec | |||||||
| Price | 1,850 2,780 | 1,390 2,790 | 1,760 2,940 | 1,390 2,790 | 830 970 | 3,520 5,420 | 1,720 2,750 |
| Rating | 4.63(8) | 4.50(912) | 4.50(910) | 4.50(911) | 4.13(8) | 4.50(1,036) | 4.70(294) |
| Brand Name | daier | daier | daier | daier | uxcell | Quartet | uxcell |
| Source | US Retail | US Retail | US Retail | US Retail | US Retail | US Retail | US Retail |
| Sold By | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow |
Why shop with us
One price. One payment. No surprises.
High risk
Buying Direct
Crowcrowcrow
Safe Lane
