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Spring Hinge Self Closing Door Hinges 4 Inch Heavy Duty Adjustable Tension, Commercial Steel Spring Hinge for Interior Exterior Fire Rated Doors (3, Matte Black, 4"X4") by MAZENHARD - Used condition

Spring Hinge Self Closing Door Hinges 4 Inch Heavy Duty Adjustable Tension, Commercial Steel Spring Hinge for Interior Exterior Fire Rated Doors (3, Matte Black, 4"X4")

Brand: MAZENHARD

Condition: Used
$920
$3999
-77% Save $3079
Updated: 3 days ago

Description

Self Closing Spring Hinge – automatic door closing with adjustable tension; ideal for right-hand or left-hand interior and exterior doors.

Heavy Duty Steel Construction – premium stainless or carbon steel spring hinge body for long-lasting durability in residential and commercial use.

Commercial Grade Spring Hinge – high-performance self-closing hinge for fire-rated doors, office doors, garage entry doors, and high-traffic areas.

Adjustable Tension Spring – multiple tension pin holes allow smooth, customizable closing speed for safety and convenience.

Universal 4” Door Hinge Replacement – fits standard 4x4 door hinges; easy installation with included tension pin; perfect self-closing upgrade.

Upgrade any door with these 4-inch heavy duty spring hinges, designed for smooth, automatic self-closing. Built from high-strength steel, these Grade 1 commercial hinges provide reliable performance for fire-rated doors, office doors, garage entry doors, and residential interior doors. The adjustable tension spring lets you control closing speed for quiet, safe operation. Each hinge fits standard 4x4 hinge locations, making it the ideal replacement for worn-out or non–self-closing hinges. Perfect for homes, businesses, and high-traffic environments that require durability and automatic closing.

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Product Details

SKU:
awhd-us-b0fx3mzvty
Model:
Spring Door Hinges 4 Inch Black
Country:
US
ASIN:
B0FX3MZVTY
UPC:
762998637131

Shopping Smarter

Common questions about buying open-box and refurbished.

Why buy refurbished or open-box?
Refurbished and open-box products offer the same performance as new at a fraction of the price. You're already saving $31 on this listing. They've been inspected, tested, and are ready to use — the only difference is the price tag. Buying refurbished also reduces electronic waste, extending product life cycles and keeping functional devices out of landfills.
What's the difference between open-box and refurbished?
Open-box products are customer returns that have been inspected and confirmed functional. They may show little to no use — often the item was returned simply because the buyer changed their mind. Refurbished products have been professionally repaired or restored by technicians, tested to meet or exceed manufacturer specifications, and sometimes come with a warranty. Both are a smart alternative to buying new.
Why use OpenBoxFox?
Finding refurbished deals is time-consuming — you'd have to check Amazon Warehouse, Reebelo, Dyson Outlet, and others separately for MAZENHARD products. OpenBoxFox aggregates these listings in one place, so you can compare and find the best deal without the legwork. We update pricing daily so you always see current availability and real savings.
Is it safe to buy refurbished?
Yes. Products listed on OpenBoxFox come from established retailers like Amazon, Reebelo, and Dyson — not unknown third-party sellers. Each retailer has buyer protection policies, return windows, and in some cases warranties. You get the price advantage of used goods with the purchase security of a known retailer.

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