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

Product ID: 46589035

Details

Brand
Readytosky
Model Name
f450 f550
Product Dimensions
1.1"W x 0.94"H
Speed
920 rpm
Voltage
12 volts

🔇Low noise & ultra-stable

🔌3.5mm bullet connectors, no soldering

⚙️920KV high-speed torque

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Description

🚁 Elevate your drone game with silent power and effortless setup!

PRECISION POWERHOUSE - 920KV brushless motors deliver smooth, reliable thrust for your drone’s ultimate flight performance.
WHISPER QUIET FLIGHT - Engineered for minimal noise and maximum stability—fly discreetly without disturbing your surroundings.
PLUG PLAY CONVENIENCE - Equipped with 3.5mm bullet connectors to save you time and hassle—no soldering required.
VERSATILE COMPATIBILITY - Perfectly fits popular quadcopter frames like F330, F450, F550, S500, S550, and DJI Phantom models.
OPTIMIZED PROPELLER PAIRING - Recommended to pair with 1045 propellers for peak efficiency and enhanced flight control.

The Readytosky 2212 920KV Brushless Motors (4PCS) are precision-engineered metal motors designed for popular quadcopter frames including F330, F450, F550, S500, S550, and DJI Phantom. Featuring a 920KV speed rating, low noise operation, and convenient 3.5mm bullet connectors, these motors provide stable, high-performance thrust with easy installation. Ideal for drone enthusiasts seeking reliable, quiet, and efficient flight components.

Specifications

ASIN	B075DD16LK
Best Sellers Rank	#130,497 in Toys & Games ( See Top 100 in Toys & Games ) #130 in RC Electric Motors
Brand Name	Readytosky
Customer Reviews	4.3 4.3 out of 5 stars (251)
Item Dimensions W x H	1.1"W x 0.94"H
Item Weight	6.72 ounces
Manufacturer	Readytosky
Material Type	Metal
Model	(B46+B48)*X
Model Name	f450,f550
Part Number	(B46+B48)*X
Shaft Diameter	12 millimeters
Speed	920 rpm
Voltage	12 volts

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€ 91.73

Duties & taxes included

In stock

Sold byAmazon CroatiaDelivered 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 Croatia.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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