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This 4-piece set of 8mm flange coupling connectors is engineered from robust 45# alloy steel with a zinc-plated finish, ensuring exceptional strength and corrosion resistance. Designed for RC model motors and DIY projects, each coupling features precision-machined M4 threaded holes and chamfered guides for easy installation and stable shaft alignment. The package includes all necessary screws and a mini hex wrench, making it a complete, professional-grade accessory trusted by enthusiasts and professionals alike.
| ASIN | B08335MYGW |
| Best Sellers Rank | 232,626 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 182 in Rigid Set Screw Couplings |
| Brand Name | daier |
| Colour | Silver |
| Compatible Groove Diameter | 4 Millimeters |
| Customer Reviews | 4.6 out of 5 stars 854 Reviews |
| Drive Style | External Hex |
| Exterior Finish | Zinc |
| Exterior finish | Zinc |
| Fastener Type | Flange |
| Fastener type | Flange |
| Finish Types | Zinc-Plated |
| Grade Rating | commercial |
| Inside Thread Size | M 4 |
| Item Diameter | 8 Millimetres |
| Item Weight | 0.11 Kilograms |
| Manufacturer | daier |
| Manufacturer Part Number | H420*4 |
| Material | Metal |
| Material Type | Metal |
| Metal | Alloy Steel, Aluminium, Copper |
| Metal type | Alloy Steel, Aluminium, Copper |
| Model Number | H420*4 |
| Number of Pieces | 4 |
| Size | 8 mm |
| Thread Class | Class 2B |
| Thread Size | M 4 |
| Thread Style | Metric |
| Thread Type | ISO Metric |
| Thread size | M 4 |
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.
R**L
Good quality, fast shipping.
Nice quality, used to attach to output 14m shaft of worm gear reducers (after removing key) etc.
A**H
Exactly as expected.
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**.
These fit small gear drives
Nice product
P**L
Perfect
Perfect
Trustpilot
2 weeks ago
1 month ago