Will this mount on a Henry .22 rifle h001?

Laura, this will not fit your Henry Rifle. If I'm not mistaken, your rifle should have a grooved receiver on top for a scope mount. If that is the case, this is the model that you are looking for: Williams Gun Sight FP-AG Receiver Peep Sight with Target Knobs, Black (14170)

What is the distance from the middle of the aperture to the top of the receiver?

That's going to depend on where your mounting holes are on your rifle.

Does this sight have the target knobs for windage and elevation adjustments? The Williams part number indicates that it does, the pictures do not.

The TK is for Target Knobs, and yes the picture is NOT correct. I bought this in Nov/Dec 2019. It does have the target knobs.

What is the distance between the two side mounting screws (center to center)?

I'm not sure I am capable of answering the question precisely enough for a gunsmith to drill and tap receiver properly. What a can tell you is that Winchester lever gun receivers are drilled and tapped accurately to accept that sight.

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Williams Gun Sight Full Proof Receiver Sight FP-94-36TK with Target Knobs fits Winchester and Marlin, Black (1276)

Williams Gun Sight Full Proof Receiver Sight FP-94-36TK with Target Knobs fits Winchester and Marlin, Black (1276)

Product ID: 26129940

Details

Brand
Williams Gun
Color
Black
Compatible Devices
Handgun
Item Weight
2 ounces
Material
Metal
Mounting Type
Dovetail Mount

🎯Fully adjustable windage & elevation

🪶Lightweight at just 1.5 oz

⚙️85,000 lbs tensile strength alloy

€ 134.03

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Description

🎯 Lock in your shot with legendary precision and lightweight power!

TRUSTED LEGACY - From the oldest sight manufacturer since 1926, a proven choice for serious hunters.
PINPOINT ACCURACY - Internal micrometer adjustments with positive locks ensure flawless windage and elevation tuning.
FEATHERLIGHT DESIGN - Weighs only 1.5 ounces, delivering high performance without the bulk.
SEAMLESS COMPATIBILITY - Fits a wide range of Winchester and Marlin models, making upgrades effortless.
RUGGED PRECISION ENGINEERING - Crafted from ultra-strong alloy with 85,000 lbs tensile strength for unmatched durability.

The Williams Gun Sight FP-94-36TK is a rugged, lightweight receiver sight engineered from a high-tensile alloy (85,000 lbs strength). Fully adjustable for windage and elevation with internal micrometer locks, it fits multiple Winchester and Marlin models. Trusted since 1926, this sight combines durability, precision, and compatibility for the discerning hunter.

Specifications

ASIN	B0000V2ETO
Best Sellers Rank	#211,408 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #511 in Gun Sights
Brand Name	Williams Gun Sight Company
Color	Black
Compatible Devices	Handgun
Customer Reviews	4.6 4.6 out of 5 stars (87)
Included Components	1 item
Item Display Weight	3 ounces
Item Type Name	Sight
Item Weight	2 ounces
Manufacturer	Williams Gun Sight Co.
Manufacturer Part Number	1276
Material Type	Metal
Model Name	1276
Model Number	1276
Mounting Type	Dovetail Mount
Number of Packs	1
Product Style	classic
Reticle Type	Target
Sport Type	Hunting
UPC	053506012763
Unit Count	1 Count

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€ 134.03

Duties & taxes included

In stock

Sold byAmazon ItalyDelivered 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 Italy.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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