how does this work? Is the black part supposed to be a magnet? There is no way to engage the handle with the other part to secure the window.

I bought these for pull in basement windows. Work really well, no magnets. Lock windows securely.

Do these latches work on windows that open inward?

These are for windows that open outward but I think you can make it work if install in on a side that doesn't open.

What stops the window from being pushed in from the outside? Pictures of your install would be great.

The rectangle black piece is inserted into the strike rectangle opening. It sticks up. The handle tip has a small hook on it. When handle is turned closed, the hook goes behind the raised black piece. This is what keeps it closed. This item is for an outswing window so if it were to be an inswing window, there would me nothing to stop it.

Whats model #for right handle

Matching right hand casement operator is Prime-Line part H 3821 https://www.amazon.com/Prime-Line-Products-3821-Off-Set-Casement/dp/B000VYEW3Q

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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Prime-Line Products H 3820 Casement Locking Handle, Left Hand, Off-Set Base, White

Product ID: 294308694

Details

Brand
Prime-Line
Colour
White
Exterior Finish
White
Handle Type
Pull Handle
Material
Diecast
Product Dimensions
38L x 89W

⚪Sleek white finish

📏1.5 inch hole center spacing

🔒Diecast metal locking handle

Description

🔐 Lock in style and security with every window swing!

SLEEK WHITE FINISH - Contemporary white coating blends effortlessly with any window style.
DURABLE DIECAST CONSTRUCTION - Robust metal build guarantees long-lasting security and reliability.
OFFSET BASE FOR EASY INSTALLATION - Mounting holes offset by 13/16 inch for perfect alignment with modern window frames.
EFFORTLESS REPLACEMENT OPERATION - Quick install with existing screws and smooth locking action restores window functionality instantly.
PRECISION FIT FOR LEFT HANDED WINDOWS - Designed specifically for left-hand casement windows ensuring seamless operation.

The Prime-Line H 3820 Casement Locking Handle is a left-handed, diecast metal locking handle featuring a 1.5-inch center-to-center hole spacing and an offset base for precise fit on contemporary metal-framed windows. Finished in sleek white, it offers durable, easy installation and reliable locking performance, making it the perfect replacement handle to restore smooth window operation.

Specifications

ASIN	B000VYD6FQ
Additional Features	Easy to Install
Brand Name	Prime-Line
Center To Center Spacing	1.5 Inches
Colour	White
Country of Publication	USA
Customer Package Type	1
Customer Reviews	4.5 4.5 out of 5 stars (301)
Exterior Finish	White
Global Trade Identification Number	00049793038203
Hand Orientation	Left
Handle Material	Metal
Handle Type	Pull Handle
Included Components	Screwdriver
Indoor Outdoor Usage	Indoor
Item Dimensions L x W	38L x 89W Millimeters
Item Type Name	handle
Item Weight	0.2 Pounds
Lock Type	lock_type
Manufacturer	Prime-Line Products
Manufacturer Part Number	H 3820
Manufacturer Warranty Description	Contact seller of record
Material Type	Diecast
Metal Type	metal_type
Model Number	H 3820
Number of Items	1
Product Finish Type	White
Room Type	room
Shape	L-Shaped
Specific Uses For Product	Locking,Locking Handle
Style Name	Contemporary
Theme	Christmas
UPC	049793038203
Unit Count	1.0 Count

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