What Size Screw for Door Hinges

Ever found yourself standing in the hardware store, staring at a wall of screws, wondering, "What size screw do door hinges use?" You're not alone. With countless sizes and types, choosing the right screw for your door hinges can seem daunting. But fear not, we're here to simplify the process and ensure you walk away with the perfect fit.

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Door hinges, like many hardware components, come in various sizes. The size of the screw you need depends on the size of your hinge. So, let's dive into the world of hinge sizes and corresponding screw sizes.

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Understanding Door Hinge Sizes

Door hinges are typically measured by their width and the size of the hole (or bore) where the screw goes through. The width can range from 38mm to 148mm, with common sizes including 44mm, 57mm, 76mm, and 102mm. The bore size, on the other hand, usually falls between 10mm and 20mm.

the different types of door hinges are shown in this poster, with instructions on how to use them

For this guide, we'll focus on the most common hinge sizes and their corresponding screw sizes.

Hinge Width: 44mm - 57mm

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These are common sizes for interior doors. If your hinge falls into this range, you'll likely need a #6 or #8 screw. Here's a breakdown:

#6 Screw: Typically used for hinges with a 44mm width and a 10mm bore.
#8 Screw: Often used for hinges with a 57mm width and a 12mm bore.

These screws are usually around 1/4" or 3/8" in length, depending on the thickness of your door and frame.

Hinge Width: 76mm - 102mm

These larger hinges are common for exterior doors and heavy interior doors. For these, you'll likely need a #10 or #12 screw:

#10 Screw: Often used for hinges with a 76mm width and a 14mm bore.
#12 Screw: Typically used for hinges with a 102mm width and a 16mm bore.

These screws are usually around 1/2" or 5/8" in length.

Choosing the Right Screw Type

an image of a door hinge with screws and screws attached to it

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Home - Carpenters know one trick that homeowners almost never use. The reason this works is simple. The original 3/4-inch hinge screws only grip the soft pine jamb, and that jamb pulls away from the stud over the years as the door's weight tugs on it. A 3-inch screw bypasses the jamb entirely and anchors into the framing lumber behind it, which is what should have been holding the door all along. You're not adjusting the door. You're reattaching the doorway to the house. Endless re-tightening of the short stock screws stops working after the second try because there's nothing solid left for them to bite into. Use a #8 or #9 wood screw with a flat head that matches the color of your existing hinge screws. The bronze or brass-coated ones cost about fifty cents each at any hardware store. R Fifty Cent, Stop Working, Hardware Store, Flat Head, Wood Screws, Lumber, Over The Years, Two By Two, The Originals

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a hand holding a metal door hinge on top of a wooden frame

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Once you've determined the size of the screw you need, you'll also want to consider the type. For door hinges, Phillips head or flathead screws are most common. Phillips head screws are easier to drive with a power drill, while flathead screws may be preferable for a more finished look.

Stainless steel screws are a good choice for exterior doors, as they resist corrosion. For interior doors, galvanized or plain steel screws are usually sufficient.

Phillips Head Screws

Phillips head screws have a cross-shaped recess that allows for easy driving with a power drill. They're often used in situations where the screw needs to be driven quickly and accurately, making them a great choice for door hinges.

Flathead Screws

Flathead screws have a single slot that runs across the top of the screw. They're often used in situations where a more finished look is desired, as the head of the screw sits flush with the surface. They can be more difficult to drive with a power drill, but they're easy to drive by hand.

Remember, it's always a good idea to have a few extra screws on hand, just in case one breaks or you need to make adjustments.

So, the next time you find yourself wondering, "What size screw do door hinges use?" you'll know exactly what you need. Happy hinging!