To securely mount items on metal siding, bypass nails and opt for galvanized nuts, bolts, and washers to create a robust connection.
Mounting items onto metal siding requires a different approach than traditional materials. While nails might seem like a simple solution, the nature of metal means that nail holes can expand over time, potentially causing damage to your building's structure and failing to hold items securely.
Why Nails Aren't Ideal for Metal Siding
- Hole Expansion: Metal siding is subject to temperature changes and movement. Nails driven into metal create stress points where the hole can gradually enlarge.
- Structural Damage: An expanding hole weakens the attachment point and can lead to deformation or damage to the siding panel itself.
- Lack of Security: As the hole expands, the nail loses its grip, resulting in an unstable and potentially failing attachment.
The Recommended Method: Using Nuts, Bolts, and Washers
According to building practices, nuts, bolts, and washers form a much more secure bond on metal siding compared to nails. This method distributes the load more effectively and creates a tight, permanent connection.
Essential Components:
- Nuts: Used to tighten the bolt from the back or inside.
- Bolts: Pass through the siding and the item being mounted, secured by a nut.
- Washers: Placed under the bolt head and the nut to distribute pressure and prevent damage to the siding surface.
- Galvanized Material: Ensure all nuts, bolts, and washers are galvanized. This coating provides resistance against rust and corrosion, which is crucial for outdoor applications and longevity.
Steps for Mounting with Bolts
- Measure and Mark: Carefully measure and mark spot(s) on the wall for item attachments. Ensure the marks align correctly with the mounting points on the item you wish to hang.
- Drill Holes: Use a drill bit appropriate for metal to create pilot holes at your marked spots. The size of the drill bit should match the diameter of your chosen bolts.
- Position Item: Align the item's mounting holes with the drilled holes in the siding.
- Insert Bolts: Push the galvanized bolts through the item and the siding.
- Add Washers and Nuts: On the inside or back of the siding, place a galvanized washer over the end of each bolt, followed by a galvanized nut.
- Tighten Securely: Tighten the nuts using a wrench until the item is held firmly against the siding. Be careful not to overtighten, which could potentially deform the siding.
Choosing the Right Bolt Size
The length and diameter of bolt depends upon items you are hanging. Consider the weight of the item, the thickness of the siding, and the structure behind the siding (if you are bolting through it) when selecting your hardware. Heavier items require thicker, stronger bolts.
Summary: Nails vs. Bolts on Metal Siding
| Feature | Nails | Nuts, Bolts, & Washers (Galvanized) |
|---|---|---|
| Holding Power | Poor, hole expands | Much more secure bond |
| Durability | Can cause siding damage over time | Creates a stable, permanent fix |
| Corrosion | Often not corrosion-resistant | Galvanized prevents rust |
| Suitability | Not recommended for reliable mounting | Recommended for secure mounting |
By utilizing galvanized nuts, bolts, and washers, you can ensure your mounted items are secure and the integrity of your metal siding is maintained.
