Brass wood screws are solid brass screws used to fasten hardware or another piece of wood to wood. They will not rust and are usually partially threaded, with a smooth shank near the head that allows the fastened piece to pull tightly against the wood.

To measure a screw, identify its gauge (diameter) and length. The easiest method is to print our full-size Screw Size Chart at 100% and place your screw on the chart. Match the outside width of the threads to the screw-gauge outlines. No calipers or special tools are needed.

Next, use the ruler on the chart to measure the screw’s length. Then identify the head type, drive type, material, and finish to find the correct replacement.

Download the Printable Screw Size Chart

Watch How to Use the Screw Size Chart

Most people call a screw with one straight groove a flathead screw. Technically, the correct term is slotted, but whatever you call it, the important part when ordering is:

Slotted = one straight groove

phillips = a cross-shaped groove

“Flat head” can also describe a screw head that sits flush with the surface, and that head can be either slotted or phillips.

Yes. Solid brass screws can be used outdoors because they contain no iron and will not rust. Brass screws were traditionally used on wooden boats, which helped give brass its classic nautical look. Outdoors—especially near salt water—the brass may darken or develop a natural patina, but it will not form red rust like steel.

The head shape determines how the screw sits against the hardware.

Flat head: Flat on top with an angled underside. Commonly used for hinges so the screw sits flush.

Oval head: Rounded on top with an angled underside. Commonly used on escutcheons and rosettes for a finished look.

Round head: Rounded on top with a flat underside. Commonly used on escutcheons where the screw sits on top of the hardware.

Use solid brass screws to match brass hardware, create a traditional historic look, and prevent rust. Solid brass contains no iron, so the screws will not rust.

Yes. Solid brass wood screws are a good choice when appearance matters or for exterior projects where you need screws that will not rust. For general projects, construction screws or drywall screws are usually better because they are made of steel, can be driven with a power driver, and are less likely to break.

You can buy solid brass wood screws from the Classic Door online store, with no minimum order and a wide range of sizes and finishes. Hardware stores may carry a few common sizes, but the selection can be hit or miss. Check the label carefully because brass plated screws are steel with a thin brass colored coating, not solid brass.