how easy to dis-engage two about 4 feet apart? How many degrees max? Anything like this for 120 degrees?

If you extend the fitting to its maximum position, it disengages automatically. So, if it is carefully mounted, they should disengage easily by doing so. The range is 0 to 50 degrees for normal mounting.

I want to mount on an overhead florescent light fixture from a flat overhead to a 45 degree hanging down position. will this hinge work?

I’m not sure if it’s work for your project, as this uses weight on top bracket to ‘lock’ its position into notches, like those pool lounge chairs...

What is the range of angles that the fitting can be adjusted to?

According to the instructions for the same item at Rockler Woodworking, the range is 0 to 50 degrees.

Can this sit completely flush with the surface it's angling?

You must allow space equal to the height of the mechanism between the two surfaces. In order for the two surfaces to be flush, the mechanism would have to be mortised into them.

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Rok Hardware Ratchet Headrest Fitting for Beds, Desk Lids, Drafting Tables, and Drawing Boards, Steel

Rok Hardware Ratchet Headrest Fitting for Beds, Desk Lids, Drafting Tables, and Drawing Boards, Steel

Product ID: 17799248

Details

Brand
Rok
Color
Silver
Finish Type
Zinc
Item Weight
12 ounces
Material
Metal

⚙️12 precise adjustment positions

🛠️Heavy-duty steel with zinc finish

🏋️‍♂️Supports up to 220 lbs static load

R804

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Description

⚙️ Elevate your workspace with precision and power!

BUILT TO ENDURE - Robust steel construction with corrosion-resistant zinc finish
VERSATILE MOUNTING - Includes upper and lower plates for seamless installation
HEAVYWEIGHT SUPPORT - Engineered to hold up to 220 pounds with unwavering stability
MULTI FUNCTIONAL DESIGN - Ideal for beds, drafting tables, desk lids, and drawing boards
PRECISION IN EVERY ANGLE - 12 adjustable positions for perfect ergonomic alignment

The Rok Hardware Ratchet Headrest Fitting is a durable steel accessory featuring 12 adjustable positions and a zinc finish, designed to support up to 220 pounds. Perfect for beds, drafting tables, desk lids, and drawing boards, it includes both upper and lower mounting plates for versatile installation.

Specifications

ASIN	B00ZY6I9FI
Best Sellers Rank	#345,941 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #18 in Drafting Tables
Brand Name	Rok
Color	Silver
Customer Reviews	4.4 4.4 out of 5 stars (247)
Finish Types	Zinc
Included Components	Mounting Hardware
Item Depth	5.5 inches
Item Weight	12 ounces
Manufacturer	Rok
Manufacturer Part Number	ROKRATCHET
Material Type	Metal
Model Number	ROKRATCHET
Mounting Type	Headrest
Set Name	Complete Set
UPC	600346737044 856791005539 600346742789
Unit Count	1 Count

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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R804

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In stock

Sold byAmazon South AfricaDelivered 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 South Africa.

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