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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Prime-Line H 3820 Casement Locking Handle, White, Left-Handed

Prime-Line H 3820 Casement Locking Handle, White, Left-Handed

Product ID: 37512796

Details

Brand
PRIME-LINE
Color
White
Material
Diecast
Product Dimensions
1.5"L x 3.5"W
Style
Contemporary

🎨Sleek white contemporary finish

🔧1.5-inch mounting spacing

⚙️Durable diecast metal build

₨362

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Description

🔐 Lock in style and security with Prime-Line’s sleek left-handed handle!

LEFT HANDED PERFECTION - Specifically engineered for left-handed window setups, guaranteeing ergonomic ease and flawless operation.
ALL INCLUSIVE INSTALLATION - Comes with mounting hardware and requires only a Phillips screwdriver—no extra trips to the hardware store.
PRECISION FIT ZERO HASSLE - 1.5-inch on-center mounting holes ensure seamless replacement for many modern casement windows.
BUILT TO LAST DESIGNED TO IMPRESS - Robust diecast metal construction combines strength with a stylish white finish for a clean, modern look.
TRUSTED BY PROS HOMEOWNERS ALIKE - Widely used by contemporary window manufacturers and backed by 289+ positive reviews with a 4.4-star rating.

The Prime-Line H 3820 is a left-handed casement locking handle featuring a durable diecast metal build and a clean white finish. Designed with 1.5-inch on-center mounting holes, it fits many contemporary window models for easy replacement. Included mounting hardware and a Phillips screwdriver requirement make installation straightforward. Trusted by manufacturers and highly rated by users, this handle blends functionality with modern aesthetics.

Specifications

ASIN	B000VYD6FQ
Additional Features	special_feature
Best Sellers Rank	#85,248 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #98 in Window Locks & Latches
Brand Name	PRIME-LINE
Center To Center Spacing	1.5 inches
Color	White
Customer Package Type	1
Customer Reviews	4.4 4.4 out of 5 stars (300)
Exterior Finish	White
Finish Types	White
Global Trade Identification Number	00049793038203
Hand Orientation	Left
Handle Attachment Mechanism	Screws
Handle Compatibility	Brand Specific, Model Specific
Handle Material	Metal
Handle Type	Lever
Included Components	Screwdriver
Indoor Outdoor Usage	Indoor
Item Depth	1.5 inches
Item Dimensions L x W	1.5"L x 3.5"W
Item Type Name	Right-Handed, White, Casement Locking Handle with Offset Base
Item Weight	3.2 ounces
Lock Type	lock_type
Manufacturer	Prime-Line Products
Manufacturer Part Number	H 3820
Manufacturer Warranty Description	Goods are warranted against manufacturing defects for 1 year.
Material Type	Diecast
Metal Type	metal_type
Model Number	H 3820
Number of Items	1
Room Type	room
Shape	L-Shaped
Specific Uses For Product	Window
Style Name	Contemporary
Theme	Christmas
UPC	049793038203
Unit Count	1 Count

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₨362

Duties & taxes included

In stock

Sold byAmazon SeychellesDelivered 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 Seychelles.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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