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⚙️ Lock in precision, power your passion!
This 4-piece set of 8mm flange coupling connectors is engineered from high-grade 45# steel with heat and electroplated finishing, delivering superior strength and corrosion resistance. Designed for RC model motors, each coupling features chamfered guides and M4 hex screws for smooth, secure installation. The package includes all necessary hardware and a mini hex wrench, making it the go-to choice for professional-grade DIY RC projects.
| ASIN | B08335MYGW |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #5,828 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1 in Rigid Set Screw Couplings |
| Brand | daier |
| Color | Silver |
| Customer Reviews | 4.6 4.6 out of 5 stars (812) |
| Cutting Diameter | 8 Millimeters |
| Date First Available | December 24, 2019 |
| Exterior Finish | Aluminum,Steel |
| Fastener Type | Flange, Hex |
| Head Style | Hexagonal |
| Inside Thread Size | M4 |
| Item Diameter | 8 Millimeters |
| Item Package Quantity | 1 |
| Item Weight | 3.87 ounces |
| Item model number | H420*4 |
| Manufacturer | daier |
| Material | Metal |
| Maximum Shear Strength | 370 MPa (53,611 psi) |
| Metal Type | Alloy Steel, Aluminum, Copper |
| Number of Pieces | 4 |
| Part Number | H420*4 |
| Size | 8mm |
| Thread Class | Class 6H |
| Thread Size | M 4 |
| Thread Style | Left Hand |
| Thread Type | Iso Metric |
R**R
Perfect Machining and Great Design – Each Flange Was Flawless
Perfect Machining and Great Design – Each Flange Was Flawless The manufacturer can be rightfully proud of the superior craftsmanship of the workers and high Quality Control inspections. Each flange was perfect: dimensions correct, NO dangerous sharp burrs left over from machining, chamfered guides for axle hole, chamfered beveled guide to screw threads for easier screw starting, and smooth screwing perfectly shaped internal threads. It was really polite, or something, that the manufacturer included the tiny Allen Wrench for the M3 socket head grub screws.
D**.
Well made and true to advertised dimenions
Great little shaft collars with flanges. Dimensions were accurate and surface finish is good. They worked so well I got a second set.
B**N
Great 5mm flange
Used these for a small robot. Handles a lot of torque and speed without issue.
R**N
great item.
Would have given five stars, but once installed they were off just a bit had to flatten on lathe to run true. Well worth buying if not needing perfect true. Would buy again. Also would be nice if added at least two extra set screws.
M**Y
Fits securely and works well!
Perfect fit to scale up the axil on small motors
T**H
Inexpensive Metal flanges seem well made and come with screws and allen wrench
I needed a flange for mounting a plastic fan unit that came with a flimsy flange molded in, that had failed. I dremelled out the old flange and added one of these metal flanges attaching it with screws and glue Bonus It comes with an allen wrench of the right size for the tiny set screws supplied
M**E
Lure turner
Used these to make a couple of lure turners. Worked very well. Solid and seem durable. Great value
C**P
It is what it says it is
Exactly what I wanted
R**L
Nice quality, used to attach to output 14m shaft of worm gear reducers (after removing key) etc.
A**H
Fits the three 8mm rods that I needed them for. Threaded screw fits properly and snugly. I had a bit of a laugh in that the resealable package ("ziploc" style) was heat-sealed shut BELOW the reseal, so after breaking the heat-seal (cutting it off) you couldn't reseal it anymore.
S**E
Arrived as described
M**.
Me gusto los tiempos y el producto es de excelente calidad.
M**C
so, 3 on 4 couplers are working.. the one with a bad tapped hole have the screw stalled in it at mid point (can’t to go deeper and can’t to remove).. the kit received contain 2 extra screws and happy of it.. so, one star less for bad tapped hole..
Trustpilot
1 month ago
5 days ago