What size are rhe bullet connectors? 2 mm???

Dear,it's 3.5mm bullet connectors.

what size mounting screws do you use to mount these motors to the frame arms?

M39 M3 Hexagonal Hex Screws 9mm

What size Nuts do these motors use to hold on the props?

Dear,the size of Nuts to hold on props was M6 size.

None of the props I've tried work with this without modification. 1045 is a good size but the axle has flats and is ~8mm in diameter. Are there any?

You can have a try 1045 Self-Tightening Propellers: https://www.amazon.com/RAYCorp-Self-Tightening-10x4-5-Propellers-Pieces/dp/B07H1HXCGJ/ref=sr_1_12?keywords=1045+props&qid=1562035838&s=gateway&sr=8-12

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Readytosky® 2212 920KV Brushless Motors CW CCW for F330 F450 F550 S500 S550 X525 DJI Phantom Quadcopter(4PCS)

Product ID: 144502009

Details

Brand
Readytosky
Model name
f450 f550
Product dimensions
28W x 24H
Speed
920 RPM
Voltage
12 Volts

🔇Low noise & ultra-stable operation

🔌3.5mm bullet connectors for easy plug & play

⚙️920KV high-speed brushless motor

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Description

🚁 Elevate your drone game with power, silence, and effortless setup!

PRECISION POWERHOUSE - 920KV brushless motors deliver smooth, high-efficiency thrust for pro-level flight control.
WHISPER QUIET FLIGHT - Engineered for minimal noise, so your drone stands out for performance, not sound.
BALANCED CW CCW SET - Includes both clockwise and counterclockwise motors for perfectly synchronized quadcopter stability.
PLUG PLAY SIMPLICITY - 3.5mm bullet connectors eliminate soldering hassle—get airborne faster and easier.
UNIVERSAL FRAME COMPATIBILITY - Fits popular DJI Phantom frames like F330, F450, F550, S500, and S550 for versatile upgrades.

The Readytosky® 2212 920KV Brushless Motors (4PCS) are precision-engineered drone motors designed for DJI Phantom-compatible frames including F330, F450, and F550. Featuring a high-speed 920KV rating, low noise operation, and convenient 3.5mm bullet connectors, these motors provide stable, efficient thrust and easy installation. The set includes both CW and CCW rotation motors, ensuring balanced flight dynamics for professional-grade quadcopters.

Specifications

ASIN	B075DD16LK
Best Sellers Rank	504,404 in Toys & Games ( See Top 100 in Toys & Games ) 1,100 in Remote & App-Controlled Helicopters
Brand	Readytosky
Customer Reviews	4.3 4.3 out of 5 stars (240)
Item Dimensions W x H	28W x 24H millimetres
Item Weight	0.42 Pounds
Manufacturer	Readytosky
Manufacturer Part Number	(B46+B48)*X
Material	Stainless Steel
Model Name	f450,f550
Model Number	(B46+B48)*X
Speed	920 RPM
Voltage	12 Volts

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73201CFA

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In stock

Sold byAmazon SenegalDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Senegal.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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